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pwm: img: Call pm_runtime_put() in pm_runtime_get_sync() failed case

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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 pm_runtime_put().

Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
This commit is contained in:
Navid Emamdoost
2020-06-01 02:11:16 -05:00
committed by Thierry Reding
parent 1d7796bdb6
commit ca162ce981
1 changed files with 6 additions and 2 deletions
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8
drivers/pwm/pwm-img.c
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@@ -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); duty = DIV_ROUND_UP(timebase * duty_ns, period_ns);
ret = pm_runtime_get_sync(chip->dev); ret = pm_runtime_get_sync(chip->dev);
if (ret < 0) if (ret < 0) {
pm_runtime_put_autosuspend(chip->dev);
return ret; return ret;
}
val = img_pwm_readl(pwm_chip, PWM_CTRL_CFG); val = img_pwm_readl(pwm_chip, PWM_CTRL_CFG);
val &= ~(PWM_CTRL_CFG_DIV_MASK << PWM_CTRL_CFG_DIV_SHIFT(pwm->hwpwm)); 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; int ret;
ret = pm_runtime_get_sync(&pdev->dev); ret = pm_runtime_get_sync(&pdev->dev);
if (ret < 0) if (ret < 0) {
pm_runtime_put(&pdev->dev);
return ret; return ret;
}
for (i = 0; i < pwm_chip->chip.npwm; i++) { for (i = 0; i < pwm_chip->chip.npwm; i++) {
val = img_pwm_readl(pwm_chip, PWM_CTRL_CFG); val = img_pwm_readl(pwm_chip, PWM_CTRL_CFG);