Liu ShuoX e5248a111b PM / Sleep: avoid 'autosleep' in shutdown progress ...

Prevent automatic system suspend from happening during system
shutdown by making try_to_suspend() check system_state and return
immediately if it is not SYSTEM_RUNNING.

This prevents the following breakage from happening (scenario from
Zhang Yanmin):

 Kernel starts shutdown and calls all device driver's shutdown
 callback.  When a driver's shutdown is called, the last wakelock is
 released and suspend-to-ram starts.  However, as some driver's shut
 down callbacks already shut down devices and disabled runtime pm,
 the suspend-to-ram calls driver's suspend callback without noticing
 that device is already off and causes crash.

[rjw: Changelog]
Signed-off-by: Liu ShuoX <[email protected]>
Cc: 3.5+ <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>

2013-07-15 01:31:37 +02:00

..

autosleep.c

PM / Sleep: avoid 'autosleep' in shutdown progress

2013-07-15 01:31:37 +02:00

block_io.c

…

console.c

PM: make VT switching to the suspend console optional v3

2013-02-20 01:33:41 +01:00

hibernate.c

…

Kconfig

Merge branch 'for-3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq

2013-07-02 19:53:30 -07:00

main.c

PM / Sleep: Warn about system time after resume with pm_trace

2013-06-27 22:14:46 +02:00

Makefile

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power.h

…

poweroff.c

power/sysrq: fix inconstistent help message of sysrq key

2013-04-30 17:04:10 -07:00

process.c

freezer: shorten freezer sleep time using exponential backoff

2013-05-12 14:16:22 +02:00

qos.c

PM / QoS: Add pm_qos_request tracepoints

2013-06-24 13:09:03 +02:00

snapshot.c

Merge branch 'akpm' (updates from Andrew Morton)

2013-07-03 17:12:13 -07:00

suspend_test.c

driver-core: constify data for class_find_device()

2013-02-06 12:18:56 -08:00

suspend.c

PM / wakeup: Adjust messaging for wake events during suspend

2013-06-11 23:53:37 +02:00

swap.c

PM / Hibernate: use rb_entry

2012-11-15 00:37:08 +01:00

user.c

…

wakelock.c

…