diff options
| author | Zou Wei <zou_wei@huawei.com> | 2021-05-12 06:57:17 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-07-20 17:10:48 +0300 |
| commit | f8ba40611be3dd2acda9cc4dac011f2a1d67bc7e (patch) | |
| tree | b629df08e5d9d98429d83f331bd2e60d32891471 | |
| parent | 9eb5142d3f764cf688b0d0718c7ec053331d55d8 (diff) | |
| download | linux-f8ba40611be3dd2acda9cc4dac011f2a1d67bc7e.tar.xz | |
pwm: img: Fix PM reference leak in img_pwm_enable()
[ Upstream commit fde25294dfd8e36e4e30b693c27a86232864002a ]
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.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zou Wei <zou_wei@huawei.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/pwm/pwm-img.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/pwm/pwm-img.c b/drivers/pwm/pwm-img.c index a34d95ed70b2..22c002e685b3 100644 --- a/drivers/pwm/pwm-img.c +++ b/drivers/pwm/pwm-img.c @@ -156,7 +156,7 @@ static int img_pwm_enable(struct pwm_chip *chip, struct pwm_device *pwm) struct img_pwm_chip *pwm_chip = to_img_pwm_chip(chip); int ret; - ret = pm_runtime_get_sync(chip->dev); + ret = pm_runtime_resume_and_get(chip->dev); if (ret < 0) return ret; |