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| author | Zou Wei <zou_wei@huawei.com> | 2021-05-12 11:57:17 +0800 |
|---|---|---|
| committer | Thierry Reding <thierry.reding@gmail.com> | 2021-06-30 19:12:18 +0200 |
| commit | fde25294dfd8e36e4e30b693c27a86232864002a (patch) | |
| tree | 40a7666917ea978a72fc60e99db945186fb157a9 /drivers/pwm/pwm-img.c | |
| parent | b63d60b2eaf3a20a60cbd3b1f252584604e828c7 (diff) | |
| download | linux-fde25294dfd8e36e4e30b693c27a86232864002a.tar.gz | |
pwm: img: Fix PM reference leak in img_pwm_enable()
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>
Diffstat (limited to 'drivers/pwm/pwm-img.c')
| -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 cc37054589cc..11b16ecc4f96 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; |