[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <20201018192635.4056198-4-sashal@kernel.org>
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
Powered by blists - more mailing lists