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| author | Rafael J. Wysocki <rjw@sisk.pl> | 2011-04-18 23:58:59 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rjw@sisk.pl> | 2011-04-18 23:58:59 +0200 |
| commit | 2ca6f62f595c01f689b269db6736de5544da7667 (patch) | |
| tree | bfc4b2225ea1df64542c92dd8336420515072faa /kernel/power | |
| parent | a1b49cb7e2a7961ec3aa8b64860bf480d4ec9077 (diff) | |
| download | linux-stable-2ca6f62f595c01f689b269db6736de5544da7667.tar.gz linux-stable-2ca6f62f595c01f689b269db6736de5544da7667.tar.bz2 linux-stable-2ca6f62f595c01f689b269db6736de5544da7667.zip | |
PM: Fix error code paths executed after failing syscore_suspend()
If syscore_suspend() fails in suspend_enter(), create_image() or
resume_target_kernel(), it is necessary to call sysdev_resume(),
because sysdev_suspend() has been called already and succeeded
and we are going to abort the transition.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'kernel/power')
| -rw-r--r-- | kernel/power/hibernate.c | 10 | ||||
| -rw-r--r-- | kernel/power/suspend.c | 5 |
2 files changed, 12 insertions, 3 deletions
diff --git a/kernel/power/hibernate.c b/kernel/power/hibernate.c index aeabd26e3342..50aae660174d 100644 --- a/kernel/power/hibernate.c +++ b/kernel/power/hibernate.c @@ -273,8 +273,11 @@ static int create_image(int platform_mode) local_irq_disable(); error = sysdev_suspend(PMSG_FREEZE); - if (!error) + if (!error) { error = syscore_suspend(); + if (error) + sysdev_resume(); + } if (error) { printk(KERN_ERR "PM: Some system devices failed to power down, " "aborting hibernation\n"); @@ -407,8 +410,11 @@ static int resume_target_kernel(bool platform_mode) local_irq_disable(); error = sysdev_suspend(PMSG_QUIESCE); - if (!error) + if (!error) { error = syscore_suspend(); + if (error) + sysdev_resume(); + } if (error) goto Enable_irqs; diff --git a/kernel/power/suspend.c b/kernel/power/suspend.c index 2814c32aed51..8935369d503a 100644 --- a/kernel/power/suspend.c +++ b/kernel/power/suspend.c @@ -164,8 +164,11 @@ static int suspend_enter(suspend_state_t state) BUG_ON(!irqs_disabled()); error = sysdev_suspend(PMSG_SUSPEND); - if (!error) + if (!error) { error = syscore_suspend(); + if (error) + sysdev_resume(); + } if (!error) { if (!(suspend_test(TEST_CORE) || pm_wakeup_pending())) { error = suspend_ops->enter(state); |