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| author | Zou Wei <zou_wei@huawei.com> | 2021-05-12 11:57:17 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-07-20 16:05:49 +0200 |
| commit | 3d82361abd03c37f681b1ceac17d9f1c19255ff7 (patch) | |
| tree | 81b7721d9a17b9b462978a821725e858e7ee1e0a | |
| parent | b3205768cd1a3a9869500ec27e129f8a71d2152a (diff) | |
| download | linux-stable-3d82361abd03c37f681b1ceac17d9f1c19255ff7.tar.gz linux-stable-3d82361abd03c37f681b1ceac17d9f1c19255ff7.tar.bz2 linux-stable-3d82361abd03c37f681b1ceac17d9f1c19255ff7.zip | |
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; |