Messages in this thread Patch in this message | | | From | Sasha Levin <> | Subject | [PATCH AUTOSEL 4.14 1/5] drm/exynos: fix ref count leak in mic_pre_enable | Date | Wed, 8 Jul 2020 11:42:04 -0400 |
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From: Navid Emamdoost <navid.emamdoost@gmail.com>
[ 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> --- drivers/gpu/drm/exynos/exynos_drm_mic.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/exynos/exynos_drm_mic.c b/drivers/gpu/drm/exynos/exynos_drm_mic.c index ba4a32b132baa..59ce068b152f5 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_mic.c +++ b/drivers/gpu/drm/exynos/exynos_drm_mic.c @@ -267,8 +267,10 @@ 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); -- 2.25.1
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