media: venus: core: Fix runtime PM imbalance in venus_probe
authorDinghao Liu <dinghao.liu@zju.edu.cn>
Sun, 28 Jun 2020 05:55:23 +0000 (07:55 +0200)
committerMauro Carvalho Chehab <mchehab+huawei@kernel.org>
Tue, 18 Aug 2020 13:54:38 +0000 (15:54 +0200)
commitbbe516e976fce538db96bd2b7287df942faa14a3
tree4e76fdaac29fa40595fff324a39cf539053cc88f
parent5cef0785362edf51f2a8cc30d5b8e9fa128d1a66
media: venus: core: Fix runtime PM imbalance in venus_probe

pm_runtime_get_sync() increments the runtime PM usage counter even
when it returns an error code. Thus a pairing decrement is needed on
the error handling path to keep the counter balanced. For other error
paths after this call, things are the same.

Fix this by adding pm_runtime_put_noidle() after 'err_runtime_disable'
label. But in this case, the error path after pm_runtime_put_sync()
will decrease PM usage counter twice. Thus add an extra
pm_runtime_get_noresume() in this path to balance PM counter.

Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
drivers/media/platform/qcom/venus/core.c