| Message ID | 20200629124752.1018358-2-lee.jones@linaro.org |
|---|---|
| State | Accepted |
| Headers | show |
| Series | Fix a bunch of W=1 warnings in PWM | expand |
diff --git a/drivers/pwm/pwm-bcm-iproc.c b/drivers/pwm/pwm-bcm-iproc.c index 1f829edd8ee70..46f0a45e9049c 100644 --- a/drivers/pwm/pwm-bcm-iproc.c +++ b/drivers/pwm/pwm-bcm-iproc.c @@ -143,8 +143,7 @@ static int iproc_pwmc_apply(struct pwm_chip *chip, struct pwm_device *pwm, value = rate * state->duty_cycle; duty = div64_u64(value, div); - if (period < IPROC_PWM_PERIOD_MIN || - duty < IPROC_PWM_DUTY_CYCLE_MIN) + if (period < IPROC_PWM_PERIOD_MIN) return -EINVAL; if (period <= IPROC_PWM_PERIOD_MAX &&
'duty' here is an unsigned int, thus checking for <0 will always evaluate to false. Fixes the following W=1 warning: drivers/pwm/pwm-bcm-iproc.c:147:12: warning: comparison of unsigned expression < 0 is always false [-Wtype-limits] Cc: Ray Jui <rjui@broadcom.com> Cc: Scott Branden <sbranden@broadcom.com> Cc: Yendapally Reddy Dhananjaya Reddy <yendapally.reddy@broadcom.com> Cc: bcm-kernel-feedback-list@broadcom.com Cc: linux-pwm@vger.kernel.org Signed-off-by: Lee Jones <lee.jones@linaro.org> --- drivers/pwm/pwm-bcm-iproc.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)