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Copy operating points from imx7d.dtsi removing unsupported 1.2 ghz one.
This fixes the following run time error:
[ 2.002793] DCDC2: unsupportable voltage range: 1225000-1100000uV
[ 2.010618] DCDC2: unsupportable voltage range: 1225000-1100000uV
[ 2.018391] cpu cpu0: failed to scale vddarm up: -22
[ 2.025083] cpufreq: __target_index: Failed to change cpu frequency: -22
Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Acked-by: Dominik Sliwa <dominik.sliwa@toradex.com>
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Add mandatory 800 MHz operating point without which the system will
freeze upon entering user space during boot.
Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Acked-by: Dominik Sliwa <dominik.sliwa@toradex.com>
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Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Acked-by: Dominik Sliwa <dominik.sliwa@toradex.com>
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Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Acked-by: Dominik Sliwa <dominik.sliwa@toradex.com>
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Add support for Aster Carrier Board with Colibri iMX6.
Signed-off-by: Sanchayan Maity <maitysanchayan@gmail.com>
Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
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Add a new pin group just for GPIO5_IO04 pin at the module level.
Add this new group to pinctrl-0 in iomuxc by default at module level
and overwrite it at Aster carrier board level without new pingroup.
This is required so this pin is muxed as GPIO at module level but
can be used by SPI driver as chip select for Aster carrier board on
RPi header X20.
Signed-off-by: Sanchayan Maity <maitysanchayan@gmail.com>
Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
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Add support to allow configuring the display timings via
kernel command line.
e.g.:
video=mxsfb:800x480M-16@60,pixclockpol=1,outputen=1
Signed-off-by: Bhuvanchandra DV <bhuvanchandra.dv@toradex.com>
Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
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Prepare for snapd integration.
Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Acked-by: Dominik Sliwa <dominik.sliwa@toradex.com>
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This fixes the following build issue on i.MX 7:
arch/arm/mach-imx/built-in.o: In function `imx6ull_lower_cpu_rate':
platform-imx-dma.c:(.text+0x5514): undefined reference to `arm_reg'
platform-imx-dma.c:(.text+0x551c): undefined reference to `arm_reg'
platform-imx-dma.c:(.text+0x553c): undefined reference to `soc_reg'
platform-imx-dma.c:(.text+0x5544): undefined reference to `soc_reg'
platform-imx-dma.c:(.text+0x5598): undefined reference to `arm_reg'
platform-imx-dma.c:(.text+0x55a0): undefined reference to `arm_reg'
platform-imx-dma.c:(.text+0x55ac): undefined reference to `soc_reg'
platform-imx-dma.c:(.text+0x55b4): undefined reference to `soc_reg'
platform-imx-dma.c:(.text+0x55c8): undefined reference to `soc_reg'
platform-imx-dma.c:(.text+0x55d0): undefined reference to `soc_reg'
platform-imx-dma.c:(.text+0x55f0): undefined reference to `arm_reg'
platform-imx-dma.c:(.text+0x55f8): undefined reference to `arm_reg'
Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Acked-by: Dominik Sliwa <dominik.sliwa@toradex.com>
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toradex_4.1-2.0.x-imx-next
Conflicts:
arch/arm/boot/dts/imx7d.dtsi
arch/arm/mach-imx/busfreq-imx.c
arch/arm/mach-imx/imx_rpmsg.c
drivers/mmc/host/sdhci-esdhc-imx.c
Parts moved to:
arch/arm/boot/dts/imx7s.dtsi
Note: This also includes NXP's latest rel_imx_4.1.15_2.1.0_ga.
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The USDHC instance 1 is powered with a separate rail. This
allows to switch voltage of the SD card signals for higher
speed modes such as UHS-I. The reset state of that rail is
enabled and 3.3V.
Revision before Colibri iMX7S V1.1C and iMX7D V1.1D had
that rail connected to +3.3V rail switchable with a PMIC
GPIO which turned out to be not controllable in regular
run mode and to LDO2.
Colibri iMX7S V1.1C and iMX7D V1.1D and later connect it
to the PMIC LDO2 only, which allows to control the voltage
directly.
This change explicitly assigning the PMIC regulator which
allows the SDHC driver code to control the SD card voltage
and hence negotiate higher speeds for SD cards capable of
UHS-I or later. Note that the carrier board device tree
needs to be adjusted too (see comments at the usdhc1 node)
and the carrier board should have no pull-ups populated.
Signed-off-by: Stefan Agner <stefan.agner@toradex.com>
Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
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Add support for Aster Carrier Board with Colibri iMX7.
Signed-off-by: Sanchayan Maity <maitysanchayan@gmail.com>
Signed-off-by: Stefan Agner <stefan.agner@toradex.com>
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Add a new hoggrp just for GPIO4_IO23 pin at the module level.
Add this new group to pinctrl-0 in iomuxc by default at module
level and overwrite it at Aster carrier board level without the
new hoggrp-6. This is required so this pin is muxed as GPIO at
module level but can be used by SPI driver as chip select for
Aster carrier board on RPi header X20.
Signed-off-by: Sanchayan Maity <maitysanchayan@gmail.com>
Signed-off-by: Stefan Agner <stefan.agner@toradex.com>
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Linux 4.1.41
* tag 'v4.1.41': (473 commits)
Linux 4.1.41
mm/huge_memory.c: respect FOLL_FORCE/FOLL_COW for thp
xc2028: Fix use-after-free bug properly
iio: proximity: as3935: fix as3935_write
ipx: call ipxitf_put() in ioctl error path
sched/fair: Initialize throttle_count for new task-groups lazily
sched/fair: Do not announce throttled next buddy in dequeue_task_fair()
iio: dac: ad7303: fix channel description
mwifiex: pcie: fix cmd_buf use-after-free in remove/reset
rtlwifi: rtl8821ae: setup 8812ae RFE according to device type
ARM: tegra: paz00: Mark panel regulator as enabled on boot
fs/xattr.c: zero out memory copied to userspace in getxattr
vfio/type1: Remove locked page accounting workqueue
crypto: algif_aead - Require setkey before accept(2)
staging: gdm724x: gdm_mux: fix use-after-free on module unload
drm/ttm: fix use-after-free races in vm fault handling
f2fs: sanity check segment count
ipv6: reorder ip6_route_dev_notifier after ipv6_dev_notf
ipv6: initialize route null entry in addrconf_init()
rtnetlink: NUL-terminate IFLA_PHYS_PORT_NAME string
...
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
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* imx/imx_4.1.15_2.0.0_ga: (157 commits)
MLK-14762 ARM: dts: imx6sll-evk: correct gpio pin for lcd power control
MLK-14285-3 usb: phy: mxs: optimize disconnect line condition
MLK-14285-2 usb: chipidea: set mode for usb phy driver
MLK-14285-1 usb: phy: add usb mode for usb_phy
MLK-14747 driver: cpufreq: Correct dc regulator voltage on imx6ull
MLK-14720 epdc: correct WFE setting when bypass legacy process
MLK-13801-02 ARM: dts: Correct the gpt timer clock source on imx6ul/ull/sll
MLK-13801-01 ARM: imx: add gpt_3m clock on imx6sll
MLK-14680 pxp/epdc: add LUT cancellation feature
MLK-14518-2 pxp: set data path for pxp after reset
MLK-14518-1 pxp: initialize pxp according to recommended flow
MLK-14516 epdc: bypass pxp legacy process when there's no transformation
MLK-14369 epdc: sync LUT status to PXP before enable collision detection
MLK-13198 pxp: imx7d: fix error histogram status report issue
MLK-13917 pxp: fix build error for pxp library in user space
MLK-13862-2 epdc/pxp: imx6ull/imx6sll: enhance the LUT cleanup flow to avoid stalling display
MLK-13862-1 epdc/pxp: imx7d: enhance the LUT cleanup flow to avoid stalling display
MLK-14697 ARM: dts: imx: update the setpoint data of imx6sll
MXSCM-266 arm: dts: increase lpddr2 voltage to 1.25V
MXSCM-265: dts: place imx6sxscm dtb files under CONFIG_SOC_IMX6SX
...
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Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
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[ Upstream commit 8310d48b125d19fcd9521d83b8293e63eb1646aa ]
In commit 19be0eaffa3a ("mm: remove gup_flags FOLL_WRITE games from
__get_user_pages()"), the mm code was changed from unsetting FOLL_WRITE
after a COW was resolved to setting the (newly introduced) FOLL_COW
instead. Simultaneously, the check in gup.c was updated to still allow
writes with FOLL_FORCE set if FOLL_COW had also been set.
However, a similar check in huge_memory.c was forgotten. As a result,
remote memory writes to ro regions of memory backed by transparent huge
pages cause an infinite loop in the kernel (handle_mm_fault sets
FOLL_COW and returns 0 causing a retry, but follow_trans_huge_pmd bails
out immidiately because `(flags & FOLL_WRITE) && !pmd_write(*pmd)` is
true.
While in this state the process is stil SIGKILLable, but little else
works (e.g. no ptrace attach, no other signals). This is easily
reproduced with the following code (assuming thp are set to always):
#include <assert.h>
#include <fcntl.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <unistd.h>
#define TEST_SIZE 5 * 1024 * 1024
int main(void) {
int status;
pid_t child;
int fd = open("/proc/self/mem", O_RDWR);
void *addr = mmap(NULL, TEST_SIZE, PROT_READ,
MAP_ANONYMOUS | MAP_PRIVATE, 0, 0);
assert(addr != MAP_FAILED);
pid_t parent_pid = getpid();
if ((child = fork()) == 0) {
void *addr2 = mmap(NULL, TEST_SIZE, PROT_READ | PROT_WRITE,
MAP_ANONYMOUS | MAP_PRIVATE, 0, 0);
assert(addr2 != MAP_FAILED);
memset(addr2, 'a', TEST_SIZE);
pwrite(fd, addr2, TEST_SIZE, (uintptr_t)addr);
return 0;
}
assert(child == waitpid(child, &status, 0));
assert(WIFEXITED(status) && WEXITSTATUS(status) == 0);
return 0;
}
Fix this by updating follow_trans_huge_pmd in huge_memory.c analogously
to the update in gup.c in the original commit. The same pattern exists
in follow_devmap_pmd. However, we should not be able to reach that
check with FOLL_COW set, so add WARN_ONCE to make sure we notice if we
ever do.
[akpm@linux-foundation.org: coding-style fixes]
Link: http://lkml.kernel.org/r/20170106015025.GA38411@juliacomputing.com
Signed-off-by: Keno Fischer <keno@juliacomputing.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Willy Tarreau <w@1wt.eu>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
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[ Upstream commit 22a1e7783e173ab3d86018eb590107d68df46c11 ]
The commit 8dfbcc4351a0 ("[media] xc2028: avoid use after free") tried
to address the reported use-after-free by clearing the reference.
However, it's clearing the wrong pointer; it sets NULL to
priv->ctrl.fname, but it's anyway overwritten by the next line
memcpy(&priv->ctrl, p, sizeof(priv->ctrl)).
OTOH, the actual code accessing the freed string is the strcmp() call
with priv->fname:
if (!firmware_name[0] && p->fname &&
priv->fname && strcmp(p->fname, priv->fname))
free_firmware(priv);
where priv->fname points to the previous file name, and this was
already freed by kfree().
For fixing the bug properly, this patch does the following:
- Keep the copy of firmware file name in only priv->fname,
priv->ctrl.fname isn't changed;
- The allocation is done only when the firmware gets loaded;
- The kfree() is called in free_firmware() commonly
Fixes: commit 8dfbcc4351a0 ('[media] xc2028: avoid use after free')
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
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[ Upstream commit 84ca8e364acb26aba3292bc113ca8ed4335380fd ]
AS3935_WRITE_DATA macro bit is incorrect and the actual write
sequence is two leading zeros.
Cc: George McCollister <george.mccollister@gmail.com>
Signed-off-by: Matt Ranostay <matt.ranostay@konsulko.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
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[ Upstream commit ee0d8d8482345ff97a75a7d747efc309f13b0d80 ]
We should call ipxitf_put() if the copy_to_user() fails.
Reported-by: 李强 <liqiang6-s@360.cn>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
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[ Upstream commit 094f469172e00d6ab0a3130b0e01c83b3cf3a98d ]
Cgroup created inside throttled group must inherit current throttle_count.
Broken throttle_count allows to nominate throttled entries as a next buddy,
later this leads to null pointer dereference in pick_next_task_fair().
This patch initialize cfs_rq->throttle_count at first enqueue: laziness
allows to skip locking all rq at group creation. Lazy approach also allows
to skip full sub-tree scan at throttling hierarchy (not in this patch).
Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: bsegall@google.com
Link: http://lkml.kernel.org/r/146608182119.21870.8439834428248129633.stgit@buzz
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
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[ Upstream commit 754bd598be9bbc953bc709a9e8ed7f3188bfb9d7 ]
Hierarchy could be already throttled at this point. Throttled next
buddy could trigger a NULL pointer dereference in pick_next_task_fair().
Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Ben Segall <bsegall@google.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/146608183552.21905.15924473394414832071.stgit@buzz
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
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[ Upstream commit ce420fd4251809b4c3119b3b20c8b13bd8eba150 ]
realbits, storagebits and shift should be numbers, not ASCII characters.
Signed-off-by: Pavel Roskin <plroskin@gmail.com>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
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[ Upstream commit 3c8cb9ad032d737b874e402c59eb51e3c991a144 ]
Command buffers (skb's) are allocated by the main driver, and freed upon
the last use. That last use is often in mwifiex_free_cmd_buffer(). In
the meantime, if the command buffer gets used by the PCI driver, we map
it as DMA-able, and store the mapping information in the 'cb' memory.
However, if a command was in-flight when resetting the device (and
therefore was still mapped), we don't get a chance to unmap this memory
until after the core has cleaned up its command handling.
Let's keep a refcount within the PCI driver, so we ensure the memory
only gets freed after we've finished unmapping it.
Noticed by KASAN when forcing a reset via:
echo 1 > /sys/bus/pci/.../reset
The same code path can presumably be exercised in remove() and
shutdown().
[ 205.390377] mwifiex_pcie 0000:01:00.0: info: shutdown mwifiex...
[ 205.400393] ==================================================================
[ 205.407719] BUG: KASAN: use-after-free in mwifiex_unmap_pci_memory.isra.14+0x4c/0x100 [mwifiex_pcie] at addr ffffffc0ad471b28
[ 205.419040] Read of size 16 by task bash/1913
[ 205.423421] =============================================================================
[ 205.431625] BUG skbuff_head_cache (Tainted: G B ): kasan: bad access detected
[ 205.439815] -----------------------------------------------------------------------------
[ 205.439815]
[ 205.449534] INFO: Allocated in __build_skb+0x48/0x114 age=1311 cpu=4 pid=1913
[ 205.456709] alloc_debug_processing+0x124/0x178
[ 205.461282] ___slab_alloc.constprop.58+0x528/0x608
[ 205.466196] __slab_alloc.isra.54.constprop.57+0x44/0x54
[ 205.471542] kmem_cache_alloc+0xcc/0x278
[ 205.475497] __build_skb+0x48/0x114
[ 205.479019] __netdev_alloc_skb+0xe0/0x170
[ 205.483244] mwifiex_alloc_cmd_buffer+0x68/0xdc [mwifiex]
[ 205.488759] mwifiex_init_fw+0x40/0x6cc [mwifiex]
[ 205.493584] _mwifiex_fw_dpc+0x158/0x520 [mwifiex]
[ 205.498491] mwifiex_reinit_sw+0x2c4/0x398 [mwifiex]
[ 205.503510] mwifiex_pcie_reset_notify+0x114/0x15c [mwifiex_pcie]
[ 205.509643] pci_reset_notify+0x5c/0x6c
[ 205.513519] pci_reset_function+0x6c/0x7c
[ 205.517567] reset_store+0x68/0x98
[ 205.521003] dev_attr_store+0x54/0x60
[ 205.524705] sysfs_kf_write+0x9c/0xb0
[ 205.528413] INFO: Freed in __kfree_skb+0xb0/0xbc age=131 cpu=4 pid=1913
[ 205.535064] free_debug_processing+0x264/0x370
[ 205.539550] __slab_free+0x84/0x40c
[ 205.543075] kmem_cache_free+0x1c8/0x2a0
[ 205.547030] __kfree_skb+0xb0/0xbc
[ 205.550465] consume_skb+0x164/0x178
[ 205.554079] __dev_kfree_skb_any+0x58/0x64
[ 205.558304] mwifiex_free_cmd_buffer+0xa0/0x158 [mwifiex]
[ 205.563817] mwifiex_shutdown_drv+0x578/0x5c4 [mwifiex]
[ 205.569164] mwifiex_shutdown_sw+0x178/0x310 [mwifiex]
[ 205.574353] mwifiex_pcie_reset_notify+0xd4/0x15c [mwifiex_pcie]
[ 205.580398] pci_reset_notify+0x5c/0x6c
[ 205.584274] pci_dev_save_and_disable+0x24/0x6c
[ 205.588837] pci_reset_function+0x30/0x7c
[ 205.592885] reset_store+0x68/0x98
[ 205.596324] dev_attr_store+0x54/0x60
[ 205.600017] sysfs_kf_write+0x9c/0xb0
...
[ 205.800488] Call trace:
[ 205.802980] [<ffffffc00020a69c>] dump_backtrace+0x0/0x190
[ 205.808415] [<ffffffc00020a96c>] show_stack+0x20/0x28
[ 205.813506] [<ffffffc0005d020c>] dump_stack+0xa4/0xcc
[ 205.818598] [<ffffffc0003be44c>] print_trailer+0x158/0x168
[ 205.824120] [<ffffffc0003be5f0>] object_err+0x4c/0x5c
[ 205.829210] [<ffffffc0003c45bc>] kasan_report+0x334/0x500
[ 205.834641] [<ffffffc0003c3994>] check_memory_region+0x20/0x14c
[ 205.840593] [<ffffffc0003c3b14>] __asan_loadN+0x14/0x1c
[ 205.845879] [<ffffffbffc46171c>] mwifiex_unmap_pci_memory.isra.14+0x4c/0x100 [mwifiex_pcie]
[ 205.854282] [<ffffffbffc461864>] mwifiex_pcie_delete_cmdrsp_buf+0x94/0xa8 [mwifiex_pcie]
[ 205.862421] [<ffffffbffc462028>] mwifiex_pcie_free_buffers+0x11c/0x158 [mwifiex_pcie]
[ 205.870302] [<ffffffbffc4620d4>] mwifiex_pcie_down_dev+0x70/0x80 [mwifiex_pcie]
[ 205.877736] [<ffffffbffc1397a8>] mwifiex_shutdown_sw+0x190/0x310 [mwifiex]
[ 205.884658] [<ffffffbffc4606b4>] mwifiex_pcie_reset_notify+0xd4/0x15c [mwifiex_pcie]
[ 205.892446] [<ffffffc000635f54>] pci_reset_notify+0x5c/0x6c
[ 205.898048] [<ffffffc00063a044>] pci_dev_save_and_disable+0x24/0x6c
[ 205.904350] [<ffffffc00063cf0c>] pci_reset_function+0x30/0x7c
[ 205.910134] [<ffffffc000641118>] reset_store+0x68/0x98
[ 205.915312] [<ffffffc000771588>] dev_attr_store+0x54/0x60
[ 205.920750] [<ffffffc00046f53c>] sysfs_kf_write+0x9c/0xb0
[ 205.926182] [<ffffffc00046dfb0>] kernfs_fop_write+0x184/0x1f8
[ 205.931963] [<ffffffc0003d64f4>] __vfs_write+0x6c/0x17c
[ 205.937221] [<ffffffc0003d7164>] vfs_write+0xf0/0x1c4
[ 205.942310] [<ffffffc0003d7da0>] SyS_write+0x78/0xd8
[ 205.947312] [<ffffffc000204634>] el0_svc_naked+0x24/0x28
...
[ 205.998268] ==================================================================
This bug has been around in different forms for a while. It was sort of
noticed in commit 955ab095c51a ("mwifiex: Do not kfree cmd buf while
unregistering PCIe"), but it just fixed the double-free, without
acknowledging the potential for use-after-free.
Fixes: fc3314609047 ("mwifiex: use pci_alloc/free_consistent APIs for PCIe")
Cc: <stable@vger.kernel.org>
Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
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[ Upstream commit 46cfa2148e7371c537efff1a1c693e58f523089d ]
Current channel switch implementation sets 8812ae RFE reg value assuming
that device always has type 2.
Extend possible RFE types set and write corresponding reg values.
Source for new code is
http://dlcdnet.asus.com/pub/ASUS/wireless/PCE-AC51/DR_PCE_AC51_20232801152016.zip
Signed-off-by: Maxim Samoylov <max7255@gmail.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@vger.kernel.org>
Cc: Yan-Hsuan Chuang <yhchuang@realtek.com>
Cc: Pkshih <pkshih@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
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[ Upstream commit 0c18927f51f4d390abdcf385bff5f995407ee732 ]
Current U-Boot enables the display already. Marking the regulator as
enabled on boot fixes sporadic panel initialization failures.
Signed-off-by: Marc Dietrich <marvin24@gmx.de>
Tested-by: Misha Komarovskiy <zombah@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
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[ Upstream commit 81be3dee96346fbe08c31be5ef74f03f6b63cf68 ]
getxattr uses vmalloc to allocate memory if kzalloc fails. This is
filled by vfs_getxattr and then copied to the userspace. vmalloc,
however, doesn't zero out the memory so if the specific implementation
of the xattr handler is sloppy we can theoretically expose a kernel
memory. There is no real sign this is really the case but let's make
sure this will not happen and use vzalloc instead.
Fixes: 779302e67835 ("fs/xattr.c:getxattr(): improve handling of allocation failures")
Link: http://lkml.kernel.org/r/20170306103327.2766-1-mhocko@kernel.org
Acked-by: Kees Cook <keescook@chromium.org>
Reported-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Michal Hocko <mhocko@suse.com>
Cc: <stable@vger.kernel.org> [3.6+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
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[ Upstream commit 0cfef2b7410b64d7a430947e0b533314c4f97153 ]
If the mmap_sem is contented then the vfio type1 IOMMU backend will
defer locked page accounting updates to a workqueue task. This has a
few problems and depending on which side the user tries to play, they
might be over-penalized for unmaps that haven't yet been accounted or
race the workqueue to enter more mappings than they're allowed. The
original intent of this workqueue mechanism seems to be focused on
reducing latency through the ioctl, but we cannot do so at the cost
of correctness. Remove this workqueue mechanism and update the
callers to allow for failure. We can also now recheck the limit under
write lock to make sure we don't exceed it.
vfio_pin_pages_remote() also now necessarily includes an unwind path
which we can jump to directly if the consecutive page pinning finds
that we're exceeding the user's memory limits. This avoids the
current lazy approach which does accounting and mapping up to the
fault, only to return an error on the next iteration to unwind the
entire vfio_dma.
Cc: stable@vger.kernel.org
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Kirti Wankhede <kwankhede@nvidia.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
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[ Upstream commit 2a2a251f110576b1d89efbd0662677d7e7db21a8 ]
Some cipher implementations will crash if you try to use them
without calling setkey first. This patch adds a check so that
the accept(2) call will fail with -ENOKEY if setkey hasn't been
done on the socket yet.
Fixes: 400c40cf78da ("crypto: algif - add AEAD support")
Cc: <stable@vger.kernel.org>
Signed-off-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
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[ Upstream commit b58f45c8fc301fe83ee28cad3e64686c19e78f1c ]
Make sure to deregister the USB driver before releasing the tty driver
to avoid use-after-free in the USB disconnect callback where the tty
devices are deregistered.
Fixes: 61e121047645 ("staging: gdm7240: adding LTE USB driver")
Cc: stable <stable@vger.kernel.org> # 3.12
Cc: Won Kang <wkang77@gmail.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
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[ Upstream commit 3089c1df10e2931b1d72d2ffa7d86431084c86b3 ]
The vm fault handler relies on the fact that the VMA owns a reference
to the BO. However, once mmap_sem is released, other tasks are free to
destroy the VMA, which can lead to the BO being freed. Fix two code
paths where that can happen, both related to vm fault retries.
Found via a lock debugging warning which flagged &bo->wu_mutex as
locked while being destroyed.
Fixes: cbe12e74ee4e ("drm/ttm: Allow vm fault retries")
Signed-off-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
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[ Upstream commit b9dd46188edc2f0d1f37328637860bb65a771124 ]
F2FS uses 4 bytes to represent block address. As a result, supported
size of disk is 16 TB and it equals to 16 * 1024 * 1024 / 2 segments.
Signed-off-by: Jin Qian <jinqian@google.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
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[ Upstream commit 242d3a49a2a1a71d8eb9f953db1bcaa9d698ce00 ]
For each netns (except init_net), we initialize its null entry
in 3 places:
1) The template itself, as we use kmemdup()
2) Code around dst_init_metrics() in ip6_route_net_init()
3) ip6_route_dev_notify(), which is supposed to initialize it after
loopback registers
Unfortunately the last one still happens in a wrong order because
we expect to initialize net->ipv6.ip6_null_entry->rt6i_idev to
net->loopback_dev's idev, thus we have to do that after we add
idev to loopback. However, this notifier has priority == 0 same as
ipv6_dev_notf, and ipv6_dev_notf is registered after
ip6_route_dev_notifier so it is called actually after
ip6_route_dev_notifier. This is similar to commit 2f460933f58e
("ipv6: initialize route null entry in addrconf_init()") which
fixes init_net.
Fix it by picking a smaller priority for ip6_route_dev_notifier.
Also, we have to release the refcnt accordingly when unregistering
loopback_dev because device exit functions are called before subsys
exit functions.
Acked-by: David Ahern <dsahern@gmail.com>
Tested-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
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[ Upstream commit 2f460933f58eee3393aba64f0f6d14acb08d1724 ]
Andrey reported a crash on init_net.ipv6.ip6_null_entry->rt6i_idev
since it is always NULL.
This is clearly wrong, we have code to initialize it to loopback_dev,
unfortunately the order is still not correct.
loopback_dev is registered very early during boot, we lose a chance
to re-initialize it in notifier. addrconf_init() is called after
ip6_route_init(), which means we have no chance to correct it.
Fix it by moving this initialization explicitly after
ipv6_add_dev(init_net.loopback_dev) in addrconf_init().
Reported-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Tested-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
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[ Upstream commit 77ef033b687c3e030017c94a29bf6ea3aaaef678 ]
IFLA_PHYS_PORT_NAME is a string attribute, so terminate it with \0.
Otherwise libnl3 fails to validate netlink messages with this attribute.
"ip -detail a" assumes too that the attribute is NUL-terminated when
printing it. It often was, due to padding.
I noticed this as libvirtd failing to start on a system with sfc driver
after upgrading it to Linux 4.11, i.e. when sfc added support for
phys_port_name.
Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
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[ Upstream commit 86f4c90a1c5c1493f07f2d12c1079f5bf01936f2 ]
raw_send_hdrinc() and rawv6_send_hdrinc() expect that the buffer copied
from the userspace contains the IPv4/IPv6 header, so if too few bytes are
copied, parts of the header may remain uninitialized.
This bug has been detected with KMSAN.
For the record, the KMSAN report:
==================================================================
BUG: KMSAN: use of unitialized memory in nf_ct_frag6_gather+0xf5a/0x44a0
inter: 0
CPU: 0 PID: 1036 Comm: probe Not tainted 4.11.0-rc5+ #2455
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:16
dump_stack+0x143/0x1b0 lib/dump_stack.c:52
kmsan_report+0x16b/0x1e0 mm/kmsan/kmsan.c:1078
__kmsan_warning_32+0x5c/0xa0 mm/kmsan/kmsan_instr.c:510
nf_ct_frag6_gather+0xf5a/0x44a0 net/ipv6/netfilter/nf_conntrack_reasm.c:577
ipv6_defrag+0x1d9/0x280 net/ipv6/netfilter/nf_defrag_ipv6_hooks.c:68
nf_hook_entry_hookfn ./include/linux/netfilter.h:102
nf_hook_slow+0x13f/0x3c0 net/netfilter/core.c:310
nf_hook ./include/linux/netfilter.h:212
NF_HOOK ./include/linux/netfilter.h:255
rawv6_send_hdrinc net/ipv6/raw.c:673
rawv6_sendmsg+0x2fcb/0x41a0 net/ipv6/raw.c:919
inet_sendmsg+0x3f8/0x6d0 net/ipv4/af_inet.c:762
sock_sendmsg_nosec net/socket.c:633
sock_sendmsg net/socket.c:643
SYSC_sendto+0x6a5/0x7c0 net/socket.c:1696
SyS_sendto+0xbc/0xe0 net/socket.c:1664
do_syscall_64+0x72/0xa0 arch/x86/entry/common.c:285
entry_SYSCALL64_slow_path+0x25/0x25 arch/x86/entry/entry_64.S:246
RIP: 0033:0x436e03
RSP: 002b:00007ffce48baf38 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00000000004002b0 RCX: 0000000000436e03
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 00007ffce48baf90 R08: 00007ffce48baf50 R09: 000000000000001c
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000401790 R14: 0000000000401820 R15: 0000000000000000
origin: 00000000d9400053
save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:59
kmsan_save_stack_with_flags mm/kmsan/kmsan.c:362
kmsan_internal_poison_shadow+0xb1/0x1a0 mm/kmsan/kmsan.c:257
kmsan_poison_shadow+0x6d/0xc0 mm/kmsan/kmsan.c:270
slab_alloc_node mm/slub.c:2735
__kmalloc_node_track_caller+0x1f4/0x390 mm/slub.c:4341
__kmalloc_reserve net/core/skbuff.c:138
__alloc_skb+0x2cd/0x740 net/core/skbuff.c:231
alloc_skb ./include/linux/skbuff.h:933
alloc_skb_with_frags+0x209/0xbc0 net/core/skbuff.c:4678
sock_alloc_send_pskb+0x9ff/0xe00 net/core/sock.c:1903
sock_alloc_send_skb+0xe4/0x100 net/core/sock.c:1920
rawv6_send_hdrinc net/ipv6/raw.c:638
rawv6_sendmsg+0x2918/0x41a0 net/ipv6/raw.c:919
inet_sendmsg+0x3f8/0x6d0 net/ipv4/af_inet.c:762
sock_sendmsg_nosec net/socket.c:633
sock_sendmsg net/socket.c:643
SYSC_sendto+0x6a5/0x7c0 net/socket.c:1696
SyS_sendto+0xbc/0xe0 net/socket.c:1664
do_syscall_64+0x72/0xa0 arch/x86/entry/common.c:285
return_from_SYSCALL_64+0x0/0x6a arch/x86/entry/entry_64.S:246
==================================================================
, triggered by the following syscalls:
socket(PF_INET6, SOCK_RAW, IPPROTO_RAW) = 3
sendto(3, NULL, 0, 0, {sa_family=AF_INET6, sin6_port=htons(0), inet_pton(AF_INET6, "ff00::", &sin6_addr), sin6_flowinfo=0, sin6_scope_id=0}, 28) = -1 EPERM
A similar report is triggered in net/ipv4/raw.c if we use a PF_INET socket
instead of a PF_INET6 one.
Signed-off-by: Alexander Potapenko <glider@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
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[ Upstream commit a9f11f963a546fea9144f6a6d1a307e814a387e7 ]
Be careful when comparing tcp_time_stamp to some u32 quantity,
otherwise result can be surprising.
Fixes: 7c106d7e782b ("[TCP]: TCP Low Priority congestion control")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
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[ Upstream commit 7162fb242cb8322beb558828fd26b33c3e9fc805 ]
Andrey found a way to trigger the WARN_ON_ONCE(delta < len) in
skb_try_coalesce() using syzkaller and a filter attached to a TCP
socket over loopback interface.
I believe one issue with looped skbs is that tcp_trim_head() can end up
producing skb with under estimated truesize.
It hardly matters for normal conditions, since packets sent over
loopback are never truncated.
Bytes trimmed from skb->head should not change skb truesize, since
skb->head is not reallocated.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Andrey Konovalov <andreyknvl@google.com>
Tested-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
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[ Upstream commit ab949d519601880fd46e8bc1445d6a453bf2dc09 ]
Imre Deak reported a deadlock of HD-audio driver at unbinding while
it's still in probing. Since we probe the codecs asynchronously in a
work, the codec driver probe may still be kicked off while the
controller itself is being unbound. And, azx_remove() tries to
process all pending tasks via cancel_work_sync() for fixing the other
races (see commit [0b8c82190c12: ALSA: hda - Cancel probe work instead
of flush at remove]), now we may meet a bizarre deadlock:
Unbind snd_hda_intel via sysfs:
device_release_driver() ->
device_lock(snd_hda_intel) ->
azx_remove() ->
cancel_work_sync(azx_probe_work)
azx_probe_work():
codec driver probe() ->
__driver_attach() ->
device_lock(snd_hda_intel)
This deadlock is caused by the fact that both device_release_driver()
and driver_probe_device() take both the device and its parent locks at
the same time. The codec device sets the controller device as its
parent, and this lock is taken before the probe() callback is called,
while the controller remove() callback gets called also with the same
lock.
In this patch, as an ugly workaround, we unlock the controller device
temporarily during cancel_work_sync() call. The race against another
bind call should be still suppressed by the parent's device lock.
Reported-by: Imre Deak <imre.deak@intel.com>
Fixes: 0b8c82190c12 ("ALSA: hda - Cancel probe work instead of flush at remove")
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
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[ Upstream commit 4f3445067d5f78fb8d1970b02610f85c2f377ea4 ]
The probe function is not marked __init, but some other functions
are. This leads to a warning on older compilers (e.g. gcc-4.3),
and can cause executing freed memory when built with those
compilers:
WARNING: drivers/staging/emxx_udc/emxx_udc.o(.text+0x2d78): Section mismatch in reference from the function nbu2ss_drv_probe() to the function .init.text:nbu2ss_drv_contest_init()
This removes the annotations.
Fixes: 33aa8d45a4fe ("staging: emxx_udc: Add Emma Mobile USB Gadget driver")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
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[ Upstream commit 2c474b8579e9b67ff72b2bcefce9f53c7f4469d4 ]
Conversion macros le16_to_cpu was removed and that caused new sparse warning
sparse output:
drivers/staging/wlan-ng/p80211netdev.c:241:44: warning: incorrect type in argument 2 (different base types)
drivers/staging/wlan-ng/p80211netdev.c:241:44: expected unsigned short [unsigned] [usertype] fc
drivers/staging/wlan-ng/p80211netdev.c:241:44: got restricted __le16 [usertype] fc
Fixes: 7ad82572348c ("staging:wlan-ng:Fix sparse warning")
Signed-off-by: Igor Pylypiv <igor.pylypiv@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
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[ Upstream commit 9cc4b7cb86cbcc6330a3faa8cd65268cd2d3c227 ]
The driver was making changes to the skb_header without
ensuring it was writable (i.e. uncloned).
This patch also removes some boiler plate header size
checking/adjustment code as that is also handled by the
skb_cow_header function used to make header writable.
Signed-off-by: James Hughes <james.hughes@raspberrypi.org>
Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
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[ Upstream commit 455a1eb4654c24560eb9dfc634f29cba3d87601e ]
The incoming skb header may be resized if header space is
insufficient, which might change the data adddress in the skb.
Ensure that a cached pointer to that data is correctly set by
moving assignment to after any possible changes.
Signed-off-by: James Hughes <james.hughes@raspberrypi.org>
Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
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[ Upstream commit d65e5677ad5b3a49c43f60ec07644dc1f87bbd2e ]
MIPS instructions MULTU, MADDU and MSUBU emulation requires registers HI/LO
to be converted to signed 32bits before 64bit sign extension on MIPS64.
Bug was found on running MIPS32 R2 test application on MIPS64 R6 kernel.
Fixes: b0a668fb2038 ("MIPS: kernel: mips-r2-to-r6-emul: Add R2 emulator for MIPS R6")
Signed-off-by: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Reported-by: Nikola.Veljkovic@imgtec.com
Cc: paul.burton@imgtec.com
Cc: yamada.masahiro@socionext.com
Cc: akpm@linux-foundation.org
Cc: andrea.gelmini@gelma.net
Cc: macro@imgtec.com
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/14043/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
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[ Upstream commit 2559a1ef688f933835912c731bed2254146a9b04 ]
The mac_scsi driver still gets disabled when SCSI=m. This should have
been fixed back when I enabled the tristate but I didn't see the bug.
Fixes: 6e9ae6d560e1 ("[PATCH] mac_scsi: Add module option to Kconfig")
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
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[ Upstream commit 4e0f5cc65098ea32a1e77baae74215b9bd5276b1 ]
Otherwise the interconnect related code implementing PM runtime will
produce these errors on a failed probe:
omap_uart 48066000.serial: omap_device: omap_device_enable() called from invalid state 1
omap_uart 48066000.serial: use pm_runtime_put_sync_suspend() in driver?
Note that we now also need to check for priv in omap8250_runtime_suspend()
as it has not yet been registered if probe fails. And we need to use
pm_runtime_put_sync() to properly idle the device like we already do
in omap8250_remove().
Fixes: 61929cf0169d ("tty: serial: Add 8250-core based omap driver")
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
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[ Upstream commit 3c0e25d883d06a1fbd1ad35257e8abaa57befb37 ]
Make sure to detect short control-message transfers and log an error
when reading incomplete manufacturer and boot descriptors.
Note that the default all-zero descriptors will now be used after a
short transfer is detected instead of partially initialised ones.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
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[ Upstream commit 36356a669eddb32917fc4b5c2b9b8bf80ede69de ]
Make sure to detect short control-message transfers so that errors are
logged when reading the modem status at open.
Note that while this also avoids initialising the modem status using
uninitialised heap data, these bits could not leak to user space as they
are currently not used.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
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[ Upstream commit 8c34cb8ddfe808d557b51da983ff10c02793beb2 ]
Make sure to detect short control-message transfers when fetching
modem and line state in open and when retrieving registers.
This specifically makes sure that an errno is returned to user space on
errors in TIOCMGET instead of a zero bitmask.
Also drop the unused getdevice function which also lacked appropriate
error handling.
Fixes: f7a33e608d9a ("USB: serial: add quatech2 usb to serial driver")
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
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[ Upstream commit e3e574ad85a208cb179f33720bb5f12b453de33c ]
Make sure to detect short responses when reading the latency timer to
avoid using stale buffer data.
Note that no heap data would currently leak through sysfs as
ASYNC_LOW_LATENCY is set by default.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
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