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drm/exynos: fix ref count leak in mic_pre_enable

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[ Upstream commit d4f5a095daf0d25f0b385e1ef26338608433a4c5 ]

in mic_pre_enable, pm_runtime_get_sync is called which
increments the counter even in case of failure, leading to incorrect
ref count. In case of failure, decrement the ref count before returning.

Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Navid Emamdoost 2020-06-15 00:49:28 -05:00 committed by Greg Kroah-Hartman
parent f886b67c6b
commit d2bfb9eb43
1 changed files with 3 additions and 1 deletions
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4
drivers/gpu/drm/exynos/exynos_drm_mic.c
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@ -268,8 +268,10 @@ static void mic_pre_enable(struct drm_bridge *bridge)
goto unlock;
ret = pm_runtime_get_sync(mic->dev);
if (ret < 0)
if (ret < 0) {
pm_runtime_put_noidle(mic->dev);
goto unlock;
}
mic_set_path(mic, 1);