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media: platform: sti: Fix runtime PM imbalance in regs_show

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[ Upstream commit 69306a947b ]

pm_runtime_get_sync() will increase the runtime PM counter
even it returns an error. Thus a pairing decrement is needed
to prevent refcount leak. Fix this by replacing this API with
pm_runtime_resume_and_get(), which will not change the runtime
PM counter on error.

Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Dinghao Liu 2021-04-07 07:43:13 +02:00 • committed by Greg Kroah-Hartman
commit 810cf54025
1 changed files with 1 additions and 1 deletions
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2
drivers/media/platform/sti/bdisp/bdisp-debug.c
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@ -480,7 +480,7 @@ static int regs_show(struct seq_file *s, void *data)
int ret;
unsigned int i;
ret = pm_runtime_get_sync(bdisp->dev);
ret = pm_runtime_resume_and_get(bdisp->dev);
if (ret < 0) {
seq_puts(s, "Cannot wake up IP\n");
return 0;