From: Navid Emamdoost navid.emamdoost@gmail.com
[ Upstream commit ca162ce98110b98e7d97b7157328d34dcfdd40a9 ]
Even in failed case of pm_runtime_get_sync(), the usage_count is incremented. In order to keep the usage_count with correct value call appropriate pm_runtime_put().
Signed-off-by: Navid Emamdoost navid.emamdoost@gmail.com Signed-off-by: Thierry Reding thierry.reding@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/pwm/pwm-img.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/drivers/pwm/pwm-img.c b/drivers/pwm/pwm-img.c index 815f5333bb8f..da72b2866e88 100644 --- a/drivers/pwm/pwm-img.c +++ b/drivers/pwm/pwm-img.c @@ -132,8 +132,10 @@ static int img_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm, duty = DIV_ROUND_UP(timebase * duty_ns, period_ns);
ret = pm_runtime_get_sync(chip->dev); - if (ret < 0) + if (ret < 0) { + pm_runtime_put_autosuspend(chip->dev); return ret; + }
val = img_pwm_readl(pwm_chip, PWM_CTRL_CFG); val &= ~(PWM_CTRL_CFG_DIV_MASK << PWM_CTRL_CFG_DIV_SHIFT(pwm->hwpwm)); @@ -334,8 +336,10 @@ static int img_pwm_remove(struct platform_device *pdev) int ret;
ret = pm_runtime_get_sync(&pdev->dev); - if (ret < 0) + if (ret < 0) { + pm_runtime_put(&pdev->dev); return ret; + }
for (i = 0; i < pwm_chip->chip.npwm; i++) { val = img_pwm_readl(pwm_chip, PWM_CTRL_CFG);