mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-30 22:26:55 +00:00
media: hi846: fix usage of pm_runtime_get_if_in_use()
[ Upstream commit04fc06f6dc
] pm_runtime_get_if_in_use() does not only return nonzero values when the device is in use, it can return a negative errno too. And especially during resuming from system suspend, when runtime pm is not yet up again, -EAGAIN is being returned, so the subsequent pm_runtime_put() call results in a refcount underflow. Fix system-resume by handling -EAGAIN of pm_runtime_get_if_in_use(). Signed-off-by: Martin Kepplinger <martin.kepplinger@puri.sm> Fixes:e8c0882685
("media: i2c: add driver for the SK Hynix Hi-846 8M pixel camera") Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
parent
1ac45cab77
commit
42ec6269f9
1 changed files with 2 additions and 1 deletions
|
@ -1353,7 +1353,8 @@ static int hi846_set_ctrl(struct v4l2_ctrl *ctrl)
|
|||
exposure_max);
|
||||
}
|
||||
|
||||
if (!pm_runtime_get_if_in_use(&client->dev))
|
||||
ret = pm_runtime_get_if_in_use(&client->dev);
|
||||
if (!ret || ret == -EAGAIN)
|
||||
return 0;
|
||||
|
||||
switch (ctrl->id) {
|
||||
|
|
Loading…
Reference in a new issue