Re: [PATCH] pwm: sun4i: redundant assignment to variable pval

From: Dan Carpenter
Date: Wed Oct 02 2019 - 09:25:35 EST


On Wed, Oct 02, 2019 at 11:08:44AM +0100, Colin King wrote:
> From: Colin Ian King <colin.king@xxxxxxxxxxxxx>
>
> Variable pval is being assigned a value that is never read. The
> assignment is redundant and hence can be removed.
>
> Addresses-Coverity: ("Unused value")
> Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
> ---
> drivers/pwm/pwm-sun4i.c | 1 -
> 1 file changed, 1 deletion(-)
>
> diff --git a/drivers/pwm/pwm-sun4i.c b/drivers/pwm/pwm-sun4i.c
> index 6f5840a1a82d..53970d4ba695 100644
> --- a/drivers/pwm/pwm-sun4i.c
> +++ b/drivers/pwm/pwm-sun4i.c
> @@ -156,7 +156,6 @@ static int sun4i_pwm_calculate(struct sun4i_pwm_chip *sun4i_pwm,
> if (sun4i_pwm->data->has_prescaler_bypass) {
> /* First, test without any prescaler when available */
> prescaler = PWM_PRESCAL_MASK;
> - pval = 1;
> /*
> * When not using any prescaler, the clock period in nanoseconds
> * is not an integer so round it half up instead of

Are you sure? It looks used to me.

regards,
dan carpenter