linux-toradex.git/drivers, branch v3.14.42

UBI: fix soft lockup in ubi_check_volume()

2015-05-13T12:17:00+00:00

commit 9aa272b492e7551a9ee0e2c83c720ea013698485 upstream.

Running mtd-utils/tests/ubi-tests/io_basic.c could cause
soft lockup or watchdog reset. It is because *updatevol*
will perform ubi_check_volume() after updating finish
and this function will full scan the updated lebs if the
volume is initialized as STATIC_VOLUME.

This patch adds *cond_resched()* in the loop of lebs scan
to avoid soft lockup.

Helped by Richard Weinberger 

[ 2158.067096] INFO: rcu_sched self-detected stall on CPU { 1}  (t=2101 jiffies g=1606 c=1605 q=56)
[ 2158.172867] CPU: 1 PID: 2073 Comm: io_basic Tainted: G           O 3.10.53 #21
[ 2158.172898] [] (unwind_backtrace+0x0/0x120) from [] (show_stack+0x10/0x14)
[ 2158.172918] [] (show_stack+0x10/0x14) from [] (rcu_check_callbacks+0x1c0/0x660)
[ 2158.172936] [] (rcu_check_callbacks+0x1c0/0x660) from [] (update_process_times+0x38/0x64)
[ 2158.172953] [] (update_process_times+0x38/0x64) from [] (tick_sched_handle+0x54/0x60)
[ 2158.172966] [] (tick_sched_handle+0x54/0x60) from [] (tick_sched_timer+0x44/0x74)
[ 2158.172978] [] (tick_sched_timer+0x44/0x74) from [] (__run_hrtimer+0xc8/0x1b8)
[ 2158.172992] [] (__run_hrtimer+0xc8/0x1b8) from [] (hrtimer_interrupt+0x128/0x2a4)
[ 2158.173007] [] (hrtimer_interrupt+0x128/0x2a4) from [] (arch_timer_handler_virt+0x28/0x30)
[ 2158.173022] [] (arch_timer_handler_virt+0x28/0x30) from [] (handle_percpu_devid_irq+0x9c/0x124)
[ 2158.173036] [] (handle_percpu_devid_irq+0x9c/0x124) from [] (generic_handle_irq+0x20/0x30)
[ 2158.173049] [] (generic_handle_irq+0x20/0x30) from [] (handle_IRQ+0x64/0x8c)
[ 2158.173060] [] (handle_IRQ+0x64/0x8c) from [] (gic_handle_irq+0x3c/0x60)
[ 2158.173074] [] (gic_handle_irq+0x3c/0x60) from [] (__irq_svc+0x40/0x50)
[ 2158.173083] Exception stack(0xc4043c98 to 0xc4043ce0)
[ 2158.173092] 3c80:                                                       c4043ce4 00000019
[ 2158.173102] 3ca0: 1f8a865f c050ad10 1f8a864c 00000031 c04b5970 0003ebce 00000000 f3550000
[ 2158.173113] 3cc0: bf00bc68 00000800 0003ebce c4043ce0 c0186d14 c0186cb8 80000013 ffffffff
[ 2158.173130] [] (__irq_svc+0x40/0x50) from [] (read_current_timer+0x4/0x38)
[ 2158.173145] [] (read_current_timer+0x4/0x38) from [<1f8a865f>] (0x1f8a865f)
[ 2183.927097] BUG: soft lockup - CPU#1 stuck for 22s! [io_basic:2073]
[ 2184.002229] Modules linked in: nandflash(O) [last unloaded: nandflash]

Signed-off-by: Wang Kai 
Signed-off-by: hujianyang 
Signed-off-by: Richard Weinberger 
Signed-off-by: Greg Kroah-Hartman

compal-laptop: Fix leaking hwmon device

2015-05-13T12:17:00+00:00

commit ad774702f1705c04e5fa492b793d8d477a504fa6 upstream.

The commit c2be45f09bb0 ("compal-laptop: Use
devm_hwmon_device_register_with_groups") wanted to change the
registering of hwmon device to resource-managed version. It mostly did
it except the main thing - it forgot to use devm-like function so the
hwmon device leaked after device removal or probe failure.

Signed-off-by: Krzysztof Kozlowski 
Fixes: c2be45f09bb0 ("compal-laptop: Use devm_hwmon_device_register_with_groups")
Acked-by: Guenter Roeck 
Acked-by: Darren Hart 
Signed-off-by: Sebastian Reichel 
Signed-off-by: Greg Kroah-Hartman

Drivers: hv: vmbus: Don't wait after requesting offers

2015-05-13T12:17:00+00:00

commit 73cffdb65e679b98893f484063462c045adcf212 upstream.

Don't wait after sending request for offers to the host. This wait is
unnecessary and simply adds 5 seconds to the boot time.

Signed-off-by: K. Y. Srinivasan 
Cc: 
Signed-off-by: Greg Kroah-Hartman

staging: panel: fix lcd type

2015-05-13T12:16:59+00:00

commit 2c20d92dad5db6440cfa88d811b69fd605240ce4 upstream.

the lcd type as defined in the Kconfig is not matching in the code.
as a result the rs, rw and en pins were getting interchanged.
Kconfig defines the value of PANEL_LCD to be 1 if we select custom
configuration but in the code LCD_TYPE_CUSTOM is defined as 5.

my hardware is LCD_TYPE_CUSTOM, but the pins were assigned to it
as pins of LCD_TYPE_OLD, and it was not working.
Now values are corrected with referenece to the values defined in
Kconfig and it is working.
checked on JHD204A lcd with LCD_TYPE_CUSTOM configuration.

Signed-off-by: Sudip Mukherjee 
Acked-by: Willy Tarreau 
[wt: backport to 3.10 and 3.14]
Signed-off-by: Willy Tarreau 
Signed-off-by: Greg Kroah-Hartman

usb: gadget: printer: enqueue printer's response for setup request

2015-05-13T12:16:59+00:00

commit eb132ccbdec5df46e29c9814adf76075ce83576b upstream.

Function-specific setup requests should be handled in such a way, that
apart from filling in the data buffer, the requests are also actually
enqueued: if function-specific setup is called from composte_setup(),
the "usb_ep_queue()" block of code in composite_setup() is skipped.

The printer function lacks this part and it results in e.g. get device id
requests failing: the host expects some response, the device prepares it
but does not equeue it for sending to the host, so the host finally asserts
timeout.

This patch adds enqueueing the prepared responses.

Fixes: 2e87edf49227: "usb: gadget: make g_printer use composite"
Signed-off-by: Andrzej Pietrasiewicz 
Signed-off-by: Felipe Balbi 
[ported to stable 3.10 and 3.14]
Signed-off-by: Andrzej Pietrasiewicz 
Signed-off-by: Greg Kroah-Hartman

usb: host: ehci: use new USB_RESUME_TIMEOUT

2015-05-13T12:16:59+00:00

commit ea16328f80ca8d74434352157f37ef60e2f55ce2 upstream.

Make sure we're using the new macro, so our
resume signaling will always pass certification.

Signed-off-by: Felipe Balbi 
Signed-off-by: Greg Kroah-Hartman

usb: host: oxu210hp: use new USB_RESUME_TIMEOUT

2015-05-13T12:16:59+00:00

commit 84c0d178eb9f3a3ae4d63dc97a440266cf17f7f5 upstream.

Make sure we're using the new macro, so our
resume signaling will always pass certification.

Signed-off-by: Felipe Balbi 
Signed-off-by: Greg Kroah-Hartman

usb: musb: use new USB_RESUME_TIMEOUT

2015-05-13T12:16:58+00:00

commit 309be239369609929d5d3833ee043f7c5afc95d1 upstream.

Make sure we're using the new macro, so our
resume signaling will always pass certification.

Based on original work by Bin Liu >

Cc: Bin Liu 
Signed-off-by: Felipe Balbi 
Signed-off-by: Greg Kroah-Hartman

drm/radeon: add SI DPM quirk for Sapphire R9 270 Dual-X 2G GDDR5

2015-05-13T12:16:58+00:00

commit cd17e02ff4db58ec32d35cf331c705d295779930 upstream.

Seems to have problems with high mclks.

bug:
https://bugs.freedesktop.org/show_bug.cgi?id=76490

Signed-off-by: Alex Deucher 
Signed-off-by: Greg Kroah-Hartman

3w-sas: fix command completion race

2015-05-13T12:16:58+00:00

commit 579d69bc1fd56d5af5761969aa529d1d1c188300 upstream.

The 3w-sas driver needs to tear down the dma mappings before returning
the command to the midlayer, as there is no guarantee the sglist and
count are valid after that point.  Also remove the dma mapping helpers
which have another inherent race due to the request_id index.

Signed-off-by: Christoph Hellwig 
Reported-by: Torsten Luettgert 
Tested-by: Bernd Kardatzki 
Acked-by: Adam Radford 
Signed-off-by: James Bottomley 
Signed-off-by: Greg Kroah-Hartman