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PM: device_suspend/resume may sleep

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This adds warning when someone tries them from atomic context.

Signed-off-by: Pavel Machek <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Pavel Machek 2006-08-31 22:02:11 -07:00 • committed by Greg Kroah-Hartman
commit bb84c89f94
2 changed files with 2 additions and 0 deletions
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1
drivers/base/power/resume.c
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@ -96,6 +96,7 @@ void dpm_resume(void)
void device_resume(void)
{
might_sleep();
down(&dpm_sem);
dpm_resume();
up(&dpm_sem);

1
drivers/base/power/suspend.c
View file

@ -140,6 +140,7 @@ int device_suspend(pm_message_t state)
{
int error = 0;
might_sleep();
down(&dpm_sem);
down(&dpm_list_sem);
while (!list_empty(&dpm_active) && error == 0) {