[PATCH] usb: typec: ucsi: remove redundant assignment to variable num

[PATCH] usb: typec: ucsi: remove redundant assignment to variable num

[Colin King]

From: Colin Ian King <colin.king@canonical.com>

Variable num is being assigned with a value that is never read, it is
assigned a new value later in a for-loop. The assignment is redundant
and can be removed.

Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
 drivers/usb/typec/ucsi/ucsi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/typec/ucsi/ucsi.c b/drivers/usb/typec/ucsi/ucsi.c
index d5a6aac86327..b1b72cb7af10 100644
--- a/drivers/usb/typec/ucsi/ucsi.c
+++ b/drivers/usb/typec/ucsi/ucsi.c
@@ -400,7 +400,7 @@ static int ucsi_register_altmodes(struct ucsi_connector *con, u8 recipient)
 	struct typec_altmode_desc desc;
 	struct ucsi_altmode alt[2];
 	u64 command;
-	int num = 1;
+	int num;
 	int ret;
 	int len;
 	int j;
-- 
2.25.0

Re: [PATCH] usb: typec: ucsi: remove redundant assignment to variable num

[Heikki Krogerus]

On Sat, Feb 08, 2020 at 04:50:22PM +0000, Colin King wrote:
> From: Colin Ian King <colin.king@canonical.com>
> 
> Variable num is being assigned with a value that is never read, it is
> assigned a new value later in a for-loop. The assignment is redundant
> and can be removed.
> 
> Addresses-Coverity: ("Unused value")
> Signed-off-by: Colin Ian King <colin.king@canonical.com>
> ---
>  drivers/usb/typec/ucsi/ucsi.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/usb/typec/ucsi/ucsi.c b/drivers/usb/typec/ucsi/ucsi.c
> index d5a6aac86327..b1b72cb7af10 100644
> --- a/drivers/usb/typec/ucsi/ucsi.c
> +++ b/drivers/usb/typec/ucsi/ucsi.c
> @@ -400,7 +400,7 @@ static int ucsi_register_altmodes(struct ucsi_connector *con, u8 recipient)
>  	struct typec_altmode_desc desc;
>  	struct ucsi_altmode alt[2];
>  	u64 command;
> -	int num = 1;
> +	int num;
>  	int ret;
>  	int len;
>  	int j;

Greg! I'll pick this, and to you with a few other patches that I have
in my queue for the ucsi driver. I hope that's OK.

thanks,

-- 
heikki

Re: [PATCH] usb: typec: ucsi: remove redundant assignment to variable num

[Greg Kroah-Hartman]

On Thu, Feb 13, 2020 at 01:34:23PM +0200, Heikki Krogerus wrote:
> On Sat, Feb 08, 2020 at 04:50:22PM +0000, Colin King wrote:
> > From: Colin Ian King <colin.king@canonical.com>
> > 
> > Variable num is being assigned with a value that is never read, it is
> > assigned a new value later in a for-loop. The assignment is redundant
> > and can be removed.
> > 
> > Addresses-Coverity: ("Unused value")
> > Signed-off-by: Colin Ian King <colin.king@canonical.com>
> > ---
> >  drivers/usb/typec/ucsi/ucsi.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/drivers/usb/typec/ucsi/ucsi.c b/drivers/usb/typec/ucsi/ucsi.c
> > index d5a6aac86327..b1b72cb7af10 100644
> > --- a/drivers/usb/typec/ucsi/ucsi.c
> > +++ b/drivers/usb/typec/ucsi/ucsi.c
> > @@ -400,7 +400,7 @@ static int ucsi_register_altmodes(struct ucsi_connector *con, u8 recipient)
> >  	struct typec_altmode_desc desc;
> >  	struct ucsi_altmode alt[2];
> >  	u64 command;
> > -	int num = 1;
> > +	int num;
> >  	int ret;
> >  	int len;
> >  	int j;
> 
> Greg! I'll pick this, and to you with a few other patches that I have
> in my queue for the ucsi driver. I hope that's OK.

Thats fine.