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Stumbled over this because of coverity (id #492),
seems like we are missing a return statement here and fail
to do proper bounds checking. If this assumption is false
we should at least change the identation to make it clear
Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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.. fix debug printk. Why, oh why, one would want to do
(u16 & 0xff) << 8
and print it with %02x format?
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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Spotted by coverity/Adrian Bunk.
Signed-off-by: Andrew de Quincey <adq_dvb@lidskialf.net>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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Ramiro Voicu hits the BUG_ON(!pte_none(*pte)) in zeromap_pte_range: kernel
bugzilla 7645. Right: read_zero_pagealigned uses down_read of mmap_sem,
but another thread's racing read of /dev/zero, or a normal fault, can
easily set that pte again, in between zap_page_range and zeromap_page_range
getting there. It's been wrong ever since 2.4.3.
The simple fix is to use down_write instead, but that would serialize reads
of /dev/zero more than at present: perhaps some app would be badly
affected. So instead let zeromap_page_range return the error instead of
BUG_ON, and read_zero_pagealigned break to the slower clear_user loop in
that case - there's no need to optimize for it.
Use -EEXIST for when a pte is found: BUG_ON in mmap_zero (the other user of
zeromap_page_range), though it really isn't interesting there. And since
mmap_zero wants -EAGAIN for out-of-memory, the zeromaps better return that
than -ENOMEM.
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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When the old IDE layer calls into methods in the driver during error
handling it is essentially random whether ide_lock is already held. This
causes a deadlock in the atiixp driver which also uses ide_lock internally
for locking.
Switch to a private lock instead.
[akpm@osl.org: cleanup]
Signed-off-by: Alan Cox <alan@redhat.com>
Acked-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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It's a known fact that Windows times out commands after 7 seconds, so
drives generally try and respond if they can before that happens. We
default to 5 seconds, which sometimes is a bit too short.
Jeremy Higdon reported here:
http://lkml.org/lkml/2007/1/1/145
that his drive takes longer than 5 seconds for a "read track
information" command, later confirming that it is about 6.7 seconds.
So just do the sane thing and change the default command timeout to 7
seconds to avoid other surprises.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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Fix typo in check of return value of qla1280_bus_reset() which would
result in an adapter reset in addition to the bus reset.
Signed-off-by: Jes Sorensen <jes@sgi.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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Original patch from Ian Dall in bugzilla. Set command timeout as
specified by the SCSI layer rather than hardcode it to 30 seconds. I
have received a couple of reports of people hitting this one with
various tape configurations and the patch looks obviously correct.
From http://bugzilla.kernel.org/show_bug.cgi?id=6275
Ian Dall <ian@beware.dropbear.id.au>:
The command sent to the card was using a 30second timeout regardless of the
timeout requested in the scsi command passed down from higher levels.
Signed-off-by: Jes Sorensen <jes@sgi.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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BUG: warning at kernel/lockdep.c:1816/trace_hardirqs_on() (Not tainted)
[<c04051ee>] show_trace_log_lvl+0x58/0x171
[<c0405802>] show_trace+0xd/0x10
[<c040591b>] dump_stack+0x19/0x1b
[<c043abee>] trace_hardirqs_on+0xa2/0x11e
[<c06143c3>] _spin_unlock_irq+0x22/0x26
[<c0541540>] rtc_get_rtc_time+0x32/0x176
[<c0419ba4>] hpet_rtc_interrupt+0x92/0x14d
[<c0450f94>] handle_IRQ_event+0x20/0x4d
[<c0451055>] __do_IRQ+0x94/0xef
[<c040678d>] do_IRQ+0x9e/0xbd
[<c0404a49>] common_interrupt+0x25/0x2c
DWARF2 unwinder stuck at common_interrupt+0x25/0x2c
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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I have a Marvell board which has the same i2c hw block than mv64xxx, so
I'm trying to use i2c-mv64xxx driver.
But I get the following random oops at boot:
Unable to handle kernel NULL pointer dereference at virtual address 00000002
Backtrace:
[<c0397e4c>] (mv64xxx_i2c_intr+0x0/0x2b8) from [<c02879c4>] (__do_irq+0x4c/0x8c)
[<c0287978>] (__do_irq+0x0/0x8c) from [<c0287c0c>] (do_level_IRQ+0x68/0xc0)
r8 = C0501E08 r7 = 00000005 r6 = C0501E08 r5 = 00000005
r4 = C048BB78
[<c0287ba4>] (do_level_IRQ+0x0/0xc0) from [<c02885f8>] (asm_do_IRQ+0x50/0x134)
r6 = C0449C78 r5 = F1020000 r4 = FFFFFFFF
[<c02885a8>] (asm_do_IRQ+0x0/0x134) from [<c02869c4>] (__irq_svc+0x24/0x100)
r8 = C1CAC400 r7 = 00000005 r6 = 00000002 r5 = F1020000
r4 = FFFFFFFF
[<c0287efc>] (setup_irq+0x0/0x124) from [<c02880d0>] (request_irq+0xb0/0xd0)
r7 = C041B2AC r6 = C0397E4C r5 = 00000000 r4 = 00000005
[<c0288020>] (request_irq+0x0/0xd0) from [<c03985f4>] (mv64xxx_i2c_probe+0x148/0x244)
[<c03984ac>] (mv64xxx_i2c_probe+0x0/0x244) from [<c038bedc>] (platform_drv_probe+0x20/0x24)
The oops is caused by a spurious interrupt that occurs when request_irq
is called. mv64xxx_i2c_fsm() tries to read drv_data->msg, which is NULL.
I noticed that hardware init is done after requesting irq. Thus any
pending irq from previous hardware usage may cause this.
Signed-off-by: Maxime Bizon <mbizon@freebox.fr>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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reference to .init.text: from .text between 'cx88_card_setup'
(at offset 0x68c) and 'cx88_risc_field'
Caused by leadtek_eeprom() being declared __devinit and called from
a non-devinit context.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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Stolen from a patch by Randy Dunlap.
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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The line:
hp->Mode &= !RIO_PCI_INT_ENABLE;
is obviously wrong as RIO_PCI_INT_ENABLE=0x04 and is used as a bitmask
2 lines before. Getting no IRQ would not disable RIO_PCI_INT_ENABLE
but rather RIO_PCI_BOOT_FROM_RAM which equals 0x01.
Obvious fix is to change ! for ~.
Signed-off-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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Update pci ids.
Signed-off-by: Chuck Short <zulcss@gmail.com>
Signed-off-by: Ben Collins <bcollins@ubuntu.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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Signed-off-by: Dave Airlie <airlied@linux.ie>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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This updated patch adds the Intel ICH9 LPC and SMBus Controller DID's.
Signed-off-by: Jason Gaston <jason.d.gaston@intel.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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Documentation update included. Compile tested.
Signed-off-by: Rudolf Marek <r.marek@sh.cvut.cz>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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Return a fault code if the Dataflash driver runs into a "no device present"
error when the MISO line has a pulldown (it currently expects a pullup), so
that rmmod won't oops.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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Implementations assume the buffer is at least 4 byte aligned.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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"sunkbd_enable(sunkbd, 0);" has no effect. Adding "sunkbd->enabled =
enable" in sunkbd_enable (obvious)
Signed-off-by: Fabrice Knevez <nuxdoors@cegetel.net>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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WARNING: drivers/net/tokenring/ibmtr.o - Section mismatch: reference to .init.data:ibmtr_mem_base from .text between 'ibmtr_probe1' (at offset 0x6e6) and 'ibmtr_probe_card'
WARNING: drivers/net/tokenring/ibmtr.o - Section mismatch: reference to .init.data:ibmtr_mem_base from .text between 'ibmtr_probe1' (at offset 0x74a) and 'ibmtr_probe_card'
WARNING: drivers/net/tokenring/ibmtr.o - Section mismatch: reference to .init.data:ibmtr_mem_base from .text between 'ibmtr_probe1' (at offset 0x7fd) and 'ibmtr_probe_card'
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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The function isdn_ppp_ccp_reset_alloc_state() sets ->timer.function
and ->timer.data and later on calls add_timer() with no init_timer()
ever done.
Noted by Al Viro.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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On a custom board with ds1337 RTC I found that upgrade from 2.6.15 to
2.6.18 broke RTC support.
The main problem are changes to ds1337_init_client().
When a ds1337 recognizes a problem (e.g. power or clock failure) bit 7
in status register is set. This has to be reset by writing 0 to status
register. But since there are only 16 byte written to the chip and the
first byte is interpreted as an address, the status register (which is
the 16th) is never written.
The other problem is, that initializing all registers to zero is not
valid for day, date and month register. Funny enough this is checked by
ds1337_detect(), which depends on this values not being zero. So then
treated by ds1337_init_client() the ds1337 is not detected anymore,
whereas the failure bit in the status register is still set.
Broken by commit f9e8957937ebf60d22732a5ca9130f48a7603f60 (2.6.16-rc1,
2006-01-06). This fix is in Linus' tree since 2.6.20-rc1 (commit
763d9c046a2e511ec090a8986d3f85edf7448e7e).
Signed-off-by: Dirk Stieler <stieler@gdsys.de>
Signed-off-by: Dirk Eibach <eibach@gdsys.de>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
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The PCI ID table in the DAC960 driver conflicts with some devices
that use the ipr driver. All ipr adapters that use this chip
have an IBM subvendor ID and all DAC960 adapters that use this
chip have a Mylex subvendor id.
Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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Fix http://bugzilla.kernel.org/show_bug.cgi?id=7152
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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If no devices found or invalid parameter is specified,
scl200wdt_pnp_driver is left unregistered.
It breaks global list of pnp drivers.
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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Fix printk output.
sc1200wdt: build 20020303<3>sc1200wdt: io parameter must be specified
Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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This is a particularly ugly on-failure bug, possibly security, since the
lack of error handling here is covering up another class of bug: failure to
handle copy_to_user() return values.
The I4L API function ->readstat() returns an integer, and by looking at
several existing driver implementations, it is clear that a negative return
value was meant to indicate an error.
Given that several drivers already return a negative value indicating an
errno-style error, the current code would blindly accept that [negative]
value as a valid amount of bytes read. Obvious damage ensues.
Correcting ->readstat() handling to properly notice errors fixes the
existing code to work correctly on error, and enables future patches to
more easily indicate errors during operation.
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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The 8110SB based n2100 board signals a lot of what ought to be
PCI data parity errors durint operation of the 8169 as target.
Experiment proved that the driver can ignore the error and
process the packet as if nothing had happened.
Let's add an ad-hoc knob to enable users to fix their system while
avoiding the risks of a wholesale change.
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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Bug reported for PCMCIA.
Signed-off-by: Arnaud Patard <apatard@mandriva.com>
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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ATAPI devices transfer fixed number of bytes for CDBs (12 or 16). Some
ATAPI devices choke when shorter CDB is used and the left bytes contain
garbage. Block SG_IO cleared left bytes but SCSI SG_IO didn't. This patch
makes SCSI SG_IO clear it and simplify CDB clearing in block SG_IO.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Acked-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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Not all graphic page remappers support physical addresses over the 4GB
mark for remapping, so while some do (the AMD64 GART always did, and I
just fixed the i965 to do so properly), we're safest off just forcing
GFP_DMA32 allocations to make sure graphics pages get allocated in the
low 32-bit address space by default.
AGP sub-drivers that really care, and can do better, could just choose
to implement their own allocator (or we could add another "64-bit safe"
default allocator for their use), but quite frankly, you're not likely
to care in practice.
So for now, this trivial change means that we won't be allocating pages
that we can't map correctly by mistake on x86-64.
[ On traditional 32-bit x86, this could never happen, because GFP_KERNEL
would never allocate any highmem memory anyway ]
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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An md array can be asked to change the amount of each device that it is using,
and in particular can be asked to use the maximum available space. This
currently only works if the first device is not larger than the rest. As
'size' gets changed and so 'fit' becomes wrong. So check if a 'fit' is
required early and don't corrupt it.
Signed-off-by: Doug Ledford <dledford@redhat.com>
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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Fix corruption issue with dm-crypt on top of software raid5. Cancelled
readahead bio's that report no error, just have BIO_UPTODATE cleared
were reported as successful reads to the higher layers (and leaving
random content in the buffer cache). Already fixed in 2.6.19.
Signed-off-by: Christophe Saout <christophe@saout.de>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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Add support for PATA controllers of MCP67 to amd74xx.c.
Signed-off-by: Peer Chen <pchen@nvidia.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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Add some nVidia chipset ID's support.
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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Added MCP61 support to sata_nv and amd74xx.
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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Based on a patch contributed by Andrew Chew @ NVIDIA.
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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When suspending a device-mapper device, dm_suspend() sleeps until all
necessary I/O is completed. This state is triggered by a callback from
persistent_commit(). But some I/O can still be issued *after* the callback
(to prepare the next metadata area for use if the current one is full). This
patch delays the callback until after that I/O is complete.
Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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On an nForce4-equipped machine with two SATA disk in raid1 setup using dmraid,
we experienced frequent deadlock of the system under high i/o load. 'cat
/dev/zero > ~/zero' was the most reliable way to reproduce them: Randomly
after a few GB, 'cp' would be left in 'D' state along with kjournald and
kmirrord. The functions cp and kjournald were blocked in did vary, but
kmirrord's wchan always pointed to 'mempool_alloc()'. We've seen this pattern
on 2.6.15 and 2.6.17 kernels. http://lkml.org/lkml/2005/4/20/142 indicates
that this problem has been around even before.
So much for the facts, here's my interpretation: mempool_alloc() first tries
to atomically allocate the requested memory, or falls back to hand out
preallocated chunks from the mempool. If both fail, it puts the calling
process (kmirrord in this case) on a private waitqueue until somebody refills
the pool. Where the only 'somebody' is kmirrord itself, so we have a
deadlock.
I worked around this problem by falling back to a (blocking) kmalloc when
before kmirrord would have ended up on the waitqueue. This defeats part of
the benefits of using the mempool, but at least keeps the system running. And
it could be done with a two-line change. Note that mempool_alloc() clears the
GFP_NOIO flag internally, and only uses it to decide whether to wait or return
an error if immediate allocation fails, so the attached patch doesn't change
behaviour in the non-deadlocking case. Path is against current git
(2.6.18-rc4), but should apply to earlier versions as well. I've tested on
2.6.15, where this patch makes the difference between random lockup and a
stable system.
Signed-off-by: Daniel Kobras <kobras@linux.de>
Acked-by: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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The device-mapper core does not perform any remapping of bios before passing
them to the targets. If a particular mapping begins part-way into a device,
targets obtain the sector relative to the start of the mapping by subtracting
ti->begin.
The dm-raid1 target didn't do this everywhere: this patch fixes it, taking
care to subtract ti->begin exactly once for each bio.
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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The reference counting on dm-mod is zero if no mapped devices are open. This
is incorrect, and can lead to an oops if the module is unloaded while mapped
devices exist.
This patch claims a reference to the module whenever a device is created, and
drops it again when the device is freed.
Devices must be removed before dm-mod is unloaded.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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Persistent snapshots currently store a private copy of the chunk size.
Userspace also supplies the chunk size when loading a snapshot. Ensure
consistency by only storing the chunk_size in one place instead of two.
Currently the two sizes will differ if the chunk size supplied by userspace
does not match the chunk size an existing snapshot actually uses. Amongst
other problems, this causes an incorrect 'percentage full' to be reported.
The patch ensures consistency by only storing the chunk_size in one place,
removing it from struct pstore. Some initialisation is delayed until the
correct chunk_size is known. If read_header() discovers that the wrong chun
size was supplied, the 'area' buffer (which the header already got read into
is reinitialised to the correct size.
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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Fix BUG I tripped on while testing failover and multipathing.
BUG shows up on error path in multipath_ctr() when parse_priority_group()
fails after returning at least once without error. The fix is to
initialize m->ti early - just after alloc()ing it.
BUG: unable to handle kernel NULL pointer dereference at virtual address 0000000
0
printing eip:
c027c3d2
*pde = 00000000
Oops: 0000 [#3]
Modules linked in: qla2xxx ext3 jbd mbcache sg ide_cd cdrom floppy
CPU: 0
EIP: 0060:[<c027c3d2>] Not tainted VLI
EFLAGS: 00010202 (2.6.17.3 #1)
EIP is at dm_put_device+0xf/0x3b
eax: 00000001 ebx: ee4fcac0 ecx: 00000000 edx: ee4fcac0
esi: ee4fc4e0 edi: ee4fc4e0 ebp: 00000000 esp: c5db3e78
ds: 007b es: 007b ss: 0068
Process multipathd (pid: 15912, threadinfo=c5db2000 task=ef485a90)
Stack: ec4eda40 c02816bd ee4fc4c0 00000000 f7e89498 f883e0bc c02816f6 f7e89480
f7e8948c c0281801 ffffffea f7e89480 f883e080 c0281ffe 00000001 00000000
00000004 dfe9cab8 f7a693c0 f883e080 f883e0c0 ca4b99c0 c027c6ee 01400000
Call Trace:
<c02816bd> free_pgpaths+0x31/0x45 <c02816f6> free_priority_group+0x25/0x2e
<c0281801> free_multipath+0x35/0x67 <c0281ffe> multipath_ctr+0x123/0x12d
<c027c6ee> dm_table_add_target+0x11e/0x18b <c027e5b4> populate_table+0x8a/0xaf
<c027e62b> table_load+0x52/0xf9 <c027ec23> ctl_ioctl+0xca/0xfc
<c027e5d9> table_load+0x0/0xf9 <c0152146> do_ioctl+0x3e/0x43
<c0152360> vfs_ioctl+0x16c/0x178 <c01523b4> sys_ioctl+0x48/0x60
<c01029b3> syscall_call+0x7/0xb
Code: 97 f0 00 00 00 89 c1 83 c9 01 80 e2 01 0f 44 c1 88 43 14 8b 04 24 59 5b 5e
5f 5d c3 53 89 c1 89 d3 ff 4a 08 0f 94 c0 84 c0 74 2a <8b> 01 8b 10 89 d8 e8 f6
fb ff ff 8b 03 8b 53 04 89 50 04 89 02
EIP: [<c027c3d2>] dm_put_device+0xf/0x3b SS:ESP 0068:c5db3e78
Signed-off-by: Michal Miroslaw <mirq-linux@rere.qmqm.pl>
Acked-by: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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Fix uses of "&&" where "&" was obviously intended instead.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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I am using a Xircom CEM33 pcmcia NIC which has occasional hardware problems.
If the netdev watchdog detects a transmit timeout, do_reset is called which
msleeps - this is illegal in atomic context.
This patch schedules the timeout handling as a workqueue item.
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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The TUNER_LG_NTSC_TAPE is identical in all respects to the
TUNER_PHILIPS_FM1236_MK3. So use the params struct for the Philips
tuner.
Also add this LG_NTSC_TAPE tuner to the switches where radio specific
parameters are set so it behaves like a TUNER_PHILIPS_FM1236_MK3. This
change fixes the radio support for this tuner (the wrong bandswitch byte
was used).
Thanks to Andy Walls <cwalls@radix.net> for finding this bug.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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In some cases when using VSB, the AGC status register has been known to
falsely report "no signal" when in fact there is a carrier lock. The
datasheet labels these status flags as QAM only, yet the lgdt330x
module is using these flags for both QAM and VSB.
This patch allows for the carrier recovery lock status register to be
tested, even if the agc signal status register falsely reports no signal.
Thanks to jcrews from #linuxtv in irc, for initially reporting this bug.
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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This patch reverts the quirk_via_irq changes in 2.6.16.17 that
caused regressions for several people.
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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