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Commit ff464745 authored by Sun Ke's avatar Sun Ke Committed by Mauro Carvalho Chehab
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media: platform: mtk-mdp3: fix PM reference leak in mdp_comp_clock_on()


mdp_comp_clock_on will increase runtime PM usage counter,
and mdp_comp_clock_off will decrease the runtime PM usage counter.
so, if mdp_comp_clock_on failed after increment runtime PM usage
counter, it should decrease it before return a error code.

pm_runtime_get_sync will increment pm usage counter even it failed.
Forgetting to putting operation will result in reference leak here.
Fix it by replacing it with pm_runtime_resume_and_get to keep usage
counter balanced.

And if failed to enable clk, add pm_runtime_put() to decrease the
runtime PM usage counter.

Fixes: 61890cca ("media: platform: mtk-mdp3: add MediaTek MDP3 driver")
Signed-off-by: default avatarSun Ke <sunke32@huawei.com>
Signed-off-by: default avatarHans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@kernel.org>
parent dec7920e
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