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Subject[PATCH] pwm: remove set but not set variable 'pwm'
Date
Fixes gcc '-Wunused-but-set-variable' warning:

drivers/pwm/pwm-pca9685.c: In function ‘pca9685_pwm_gpio_free’:
drivers/pwm/pwm-pca9685.c:162:21: warning: variable ‘pwm’ set but
not used [-Wunused-but-set-variable]

It is never used, and so can be removed.

Signed-off-by: yu kuai <yukuai3@huawei.com>
---
drivers/pwm/pwm-pca9685.c | 4 ----
1 file changed, 4 deletions(-)

diff --git a/drivers/pwm/pwm-pca9685.c b/drivers/pwm/pwm-pca9685.c
index 168684b02ebc..b07bdca3d510 100644
--- a/drivers/pwm/pwm-pca9685.c
+++ b/drivers/pwm/pwm-pca9685.c
@@ -159,13 +159,9 @@ static void pca9685_pwm_gpio_set(struct gpio_chip *gpio, unsigned int offset,
static void pca9685_pwm_gpio_free(struct gpio_chip *gpio, unsigned int offset)
{
struct pca9685 *pca = gpiochip_get_data(gpio);
- struct pwm_device *pwm;

pca9685_pwm_gpio_set(gpio, offset, 0);
pm_runtime_put(pca->chip.dev);
- mutex_lock(&pca->lock);
- pwm = &pca->chip.pwms[offset];
- mutex_unlock(&pca->lock);
}

static int pca9685_pwm_gpio_get_direction(struct gpio_chip *chip,
--
2.17.2
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