pwm: Remove set but not set variable 'pwm'
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. In that case, hold and release the lock 'pca->lock' can be removed since nothing will be done between them. Fixes: e926b12c ("pwm: Clear chip_data in pwm_put()") Signed-off-by: Nyu kuai <yukuai3@huawei.com> Acked-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: NThierry Reding <thierry.reding@gmail.com>
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