Messages in this thread Patch in this message | | | From | Navid Emamdoost <> | Subject | [PATCH] pwm: img: call pm_runtime_put in pm_runtime_get_sync failed case | Date | Mon, 1 Jun 2020 02:11:16 -0500 |
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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 put.
Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com> --- 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 c9e57bd109fb..599a0f66a384 100644 --- a/drivers/pwm/pwm-img.c +++ b/drivers/pwm/pwm-img.c @@ -129,8 +129,10 @@ 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)); @@ -331,8 +333,10 @@ 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); -- 2.17.1
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