linux/drivers/base/power
John Stultz 4955070974 PM / wakeup: Use irqsave/irqrestore for events_lock
Jon Medhurst (Tixy) recently noticed a problem with the
events_lock usage. One of the Android patches that uses
wakeup_sources calls wakeup_source_add() with irqs disabled.
However, the event_lock usage in wakeup_source_add() uses
spin_lock_irq()/spin_unlock_irq(), which reenables interrupts.
This results in lockdep warnings.

The fix is to use spin_lock_irqsave()/spin_lock_irqrestore()
instead for the events_lock.

References: https://bugs.launchpad.net/linaro-landing-team-arm/+bug/1037565
Reported-and-debugged-by: Jon Medhurst (Tixy) <tixy@linaro.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-09-06 23:19:06 +02:00
..
clock_ops.c PM: Make dev_pm_get_subsys_data() always return 0 on success 2012-08-08 20:49:33 +02:00
common.c PM: Make dev_pm_get_subsys_data() always return 0 on success 2012-08-08 20:49:33 +02:00
domain_governor.c PM / Domains: Fix computation of maximum domain off time 2012-05-11 21:11:44 +02:00
domain.c PM / Domains: Fix build warning for CONFIG_PM_RUNTIME unset 2012-07-12 22:39:49 +02:00
generic_ops.c PM / Sleep: Introduce generic callbacks for new device PM phases 2012-01-29 20:38:41 +01:00
main.c Merge branch 'pm-sleep' 2012-07-19 10:39:21 +02:00
Makefile PM / Domains: Add device stop governor function (v4) 2011-12-01 21:47:40 +01:00
opp.c device.h: cleanup users outside of linux/include (C files) 2012-03-11 14:27:37 -04:00
power.h PM / Sleep: Separate printing suspend times from initcall_debug 2012-07-01 13:31:23 +02:00
qos.c PM / QoS: Use NULL pointer instead of plain integer in qos.c 2012-07-19 00:02:36 +02:00
runtime.c PM / Runtime: Remove device fields related to suspend time, v2 2012-05-01 21:28:38 +02:00
sysfs.c PM / Sleep: Fix build warning in sysfs.c for CONFIG_PM_SLEEP unset 2012-07-12 22:40:02 +02:00
trace.c drivers/base: Add export.h for EXPORT_SYMBOL/THIS_MODULE as required. 2011-10-31 19:31:38 -04:00
wakeup.c PM / wakeup: Use irqsave/irqrestore for events_lock 2012-09-06 23:19:06 +02:00