diff options
| author | Benoit Goby <benoit@android.com> | 2010-12-13 15:27:06 -0800 |
|---|---|---|
| committer | Benoit Goby <benoit@android.com> | 2010-12-13 17:39:09 -0800 |
| commit | 1cfb26afa1528c3c148f59aa0f6764d77c02659a (patch) | |
| tree | 639a2357e8698edecf36cebfd332a643cc3475eb | |
| parent | b18f3941c749c36cb87df166fb593a27950046cb (diff) | |
| download | qemu-1cfb26afa1528c3c148f59aa0f6764d77c02659a.tar.gz | |
PM: Wait for completion of the parent resume before resuming
If the parent device is in the DPM_RESUMING state, resume might get called
before the parent's resume has completed, because dpm_wait won't get
called. This issue was introduced by:
3d46a3c PM: Prevent waiting forever on asynchronous resume after abort
Wait for completion of the parent resume if the parent state is >= DPM_OFF
or == DPM_RESUMING
Change-Id: I14a4e16426f61efceaefedc7e772f53b7522b5dd
Signed-off-by: Benoit Goby <benoit@android.com>
| -rw-r--r-- | drivers/base/power/main.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c index 17aff79bd32..4a57ecc4ead 100644 --- a/drivers/base/power/main.c +++ b/drivers/base/power/main.c @@ -528,7 +528,8 @@ static int device_resume(struct device *dev, pm_message_t state, bool async) TRACE_DEVICE(dev); TRACE_RESUME(0); - if (dev->parent && dev->parent->power.status >= DPM_OFF) + if (dev->parent && (dev->parent->power.status >= DPM_OFF || + dev->parent->power.status == DPM_RESUMING)) dpm_wait(dev->parent, async); device_lock(dev); |