linux-kernel - Re: [PATCH 10/20] media: lmedm04: use semicolons rather than commas to separate statements

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Message-ID: <alpine.DEB.2.22.394.2009291840470.2808@hadrien>
Date:   Tue, 29 Sep 2020 18:43:40 +0200 (CEST)
From:   Julia Lawall <julia.lawall@...ia.fr>
To:     Christophe JAILLET <christophe.jaillet@...adoo.fr>
cc:     Malcolm Priestley <tvboxspy@...il.com>,
        Valdis Klētnieks <valdis.kletnieks@...edu>,
        Joe Perches <joe@...ches.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        kernel-janitors@...r.kernel.org,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        linux-media@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 10/20] media: lmedm04: use semicolons rather than commas
 to separate statements



On Tue, 29 Sep 2020, Christophe JAILLET wrote:

> Le 29/09/2020 à 15:14, Julia Lawall a écrit :
> > Replace commas with semicolons.  Commas introduce unnecessary
> > variability in the code structure and are hard to see.  What is done
> > is essentially described by the following Coccinelle semantic patch
> > (http://coccinelle.lip6.fr/):
> >
> > // <smpl>
> > @@ expression e1,e2; @@
> > e1
> > -,
> > +;
> > e2
> > ... when any
> > // </smpl>
> >
> > Signed-off-by: Julia Lawall <Julia.Lawall@...ia.fr>
> >
> > ---
> >   drivers/media/usb/dvb-usb-v2/lmedm04.c |    2 +-
> >   1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/media/usb/dvb-usb-v2/lmedm04.c
> > b/drivers/media/usb/dvb-usb-v2/lmedm04.c
> > index 5a7a9522d46d..9ddda8d68ee0 100644
> > --- a/drivers/media/usb/dvb-usb-v2/lmedm04.c
> > +++ b/drivers/media/usb/dvb-usb-v2/lmedm04.c
> > @@ -391,7 +391,7 @@ static int lme2510_int_read(struct dvb_usb_adapter
> > *adap)
> >   	ep = usb_pipe_endpoint(d->udev, lme_int->lme_urb->pipe);
> >     	if (usb_endpoint_type(&ep->desc) == USB_ENDPOINT_XFER_BULK)
> > -		lme_int->lme_urb->pipe = usb_rcvbulkpipe(d->udev, 0xa),
> > +		lme_int->lme_urb->pipe = usb_rcvbulkpipe(d->udev, 0xa);
> >     	usb_submit_urb(lme_int->lme_urb, GFP_ATOMIC);
> >   	info("INT Interrupt Service Started");
> >
> >
> Ouch!
>
> This one looks like a real issue!

Oops, yes, I meant to make a comment about it.

Joe may have sent this patch already.  At least he has sent a patch on an
issue like this.

julia