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

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
...@@ -96,6 +96,7 @@ void dpm_resume(void) ...@@ -96,6 +96,7 @@ void dpm_resume(void)
void device_resume(void) void device_resume(void)
{ {
might_sleep();
down(&dpm_sem); down(&dpm_sem);
dpm_resume(); dpm_resume();
up(&dpm_sem); up(&dpm_sem);
......
...@@ -140,6 +140,7 @@ int device_suspend(pm_message_t state) ...@@ -140,6 +140,7 @@ int device_suspend(pm_message_t state)
{ {
int error = 0; int error = 0;
might_sleep();
down(&dpm_sem); down(&dpm_sem);
down(&dpm_list_sem); down(&dpm_list_sem);
while (!list_empty(&dpm_active) && error == 0) { while (!list_empty(&dpm_active) && error == 0) {
......
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