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Commit bb84c89f authored by Pavel Machek's avatar Pavel Machek Committed by Greg Kroah-Hartman
Browse files

PM: device_suspend/resume may sleep 



This adds warning when someone tries them from atomic context.

Signed-off-by: default avatarPavel Machek <pavel@suse.cz>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 84ed64ee

drivers/base/power/resume.c

+1 −0
Original line number Diff line number Diff line
@@ -96,6 +96,7 @@ void dpm_resume(void) 


void device_resume(void)

{

	might_sleep();

	down(&dpm_sem);

	dpm_resume();

	up(&dpm_sem);

drivers/base/power/suspend.c

+1 −0
Original line number Diff line number Diff line
@@ -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) {