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Date: Sun, 18 Oct 2020 15:25:58 -0400 From: Sasha Levin <sashal@...nel.org> To: linux-kernel@...r.kernel.org, stable@...r.kernel.org Cc: Qiushi Wu <wu000273@....edu>, Hans Verkuil <hverkuil-cisco@...all.nl>, Mauro Carvalho Chehab <mchehab+huawei@...nel.org>, Sasha Levin <sashal@...nel.org>, linux-media@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, linux-samsung-soc@...r.kernel.org Subject: [PATCH AUTOSEL 4.9 04/41] media: exynos4-is: Fix several reference count leaks due to pm_runtime_get_sync From: Qiushi Wu <wu000273@....edu> [ Upstream commit 7ef64ceea0008c17e94a8a2c60c5d6d46f481996 ] On calling pm_runtime_get_sync() the reference count of the device is incremented. In case of failure, decrement the reference count before returning the error. Signed-off-by: Qiushi Wu <wu000273@....edu> Signed-off-by: Hans Verkuil <hverkuil-cisco@...all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@...nel.org> Signed-off-by: Sasha Levin <sashal@...nel.org> --- drivers/media/platform/exynos4-is/fimc-isp.c | 4 +++- drivers/media/platform/exynos4-is/fimc-lite.c | 2 +- 2 files changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/media/platform/exynos4-is/fimc-isp.c b/drivers/media/platform/exynos4-is/fimc-isp.c index 8efe9160ab346..dbc4f57f34a52 100644 --- a/drivers/media/platform/exynos4-is/fimc-isp.c +++ b/drivers/media/platform/exynos4-is/fimc-isp.c @@ -311,8 +311,10 @@ static int fimc_isp_subdev_s_power(struct v4l2_subdev *sd, int on) if (on) { ret = pm_runtime_get_sync(&is->pdev->dev); - if (ret < 0) + if (ret < 0) { + pm_runtime_put(&is->pdev->dev); return ret; + } set_bit(IS_ST_PWR_ON, &is->state); ret = fimc_is_start_firmware(is); diff --git a/drivers/media/platform/exynos4-is/fimc-lite.c b/drivers/media/platform/exynos4-is/fimc-lite.c index b91abf1c4d43b..f1921e06ffe1b 100644 --- a/drivers/media/platform/exynos4-is/fimc-lite.c +++ b/drivers/media/platform/exynos4-is/fimc-lite.c @@ -480,7 +480,7 @@ static int fimc_lite_open(struct file *file) set_bit(ST_FLITE_IN_USE, &fimc->state); ret = pm_runtime_get_sync(&fimc->pdev->dev); if (ret < 0) - goto unlock; + goto err_pm; ret = v4l2_fh_open(file); if (ret < 0) -- 2.25.1
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