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From: Dan Carpenter <dan.carpenter@oracle.com>
To: Colin King <colin.king@canonical.com>
Cc: linux-pwm@vger.kernel.org, kernel-janitors@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	"Maxime Ripard" <mripard@kernel.org>,
	"Chen-Yu Tsai" <wens@csie.org>,
	"Thierry Reding" <thierry.reding@gmail.com>,
	"Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH] pwm: sun4i: redundant assignment to variable pval
Date: Wed, 2 Oct 2019 16:29:33 +0300	[thread overview]
Message-ID: <20191002132933.GO29696@kadam> (raw)
In-Reply-To: <20191002132506.GO22609@kadam>

On Wed, Oct 02, 2019 at 04:25:06PM +0300, Dan Carpenter wrote:
> On Wed, Oct 02, 2019 at 11:08:44AM +0100, Colin King wrote:
> > From: Colin Ian King <colin.king@canonical.com>
> > 
> > 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@canonical.com>
> > ---
> >  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.

Ah.  Never mind.  My tree was out of date.

regards,
dan carpenter


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  parent reply	other threads:[~2019-10-02 13:30 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-02 10:08 [PATCH] pwm: sun4i: redundant assignment to variable pval Colin King
2019-10-02 10:16 ` Uwe Kleine-König
2019-12-05  7:24   ` [PATCH] pwm: sun4i: Narrow scope of local variable Uwe Kleine-König
2019-12-05  8:37     ` walter harms
2019-12-10 10:12       ` Uwe Kleine-König
2019-12-10 10:24         ` [PATCH v2] " Uwe Kleine-König
2019-10-02 10:39 ` [PATCH] pwm: sun4i: redundant assignment to variable pval Thierry Reding
2019-10-02 13:25 ` Dan Carpenter
2019-10-02 13:28   ` Colin Ian King
2019-10-02 13:29   ` Dan Carpenter [this message]
2019-10-02 13:30     ` Colin Ian King

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