media: hi846: fix usage of pm_runtime_get_if_in_use()
[ Upstream commit
04fc06f6dc1592ed5d675311ac50d8fba5db62ab ]
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:
e8c0882685f9 ("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>