Re: [PATCH] staging: speakup: replace simple_strtoul with kstrtoul

From: Dan Carpenter
Date: Thu Dec 18 2014 - 16:25:35 EST


On Thu, Dec 18, 2014 at 05:48:10PM +0300, samuel kihahu wrote:
> On Wed, Dec 17, 2014 at 05:03:22PM +0300, Dan Carpenter wrote:
> > On Wed, Dec 17, 2014 at 04:43:54PM +0300, samuel kihahu wrote:
> > > On Wed, Dec 17, 2014 at 03:11:19PM +0300, Dan Carpenter wrote:
> > > > On Wed, Dec 17, 2014 at 02:56:02PM +0300, samuel kihahu wrote:
> > > > > Replacing obsolete simple_strtoul with kstrtoul.
> > > > >
> > > >
> > > > Nope. That's wrong. Learn how the functions are different beyond just
> > > > the name.
> > > Noted, have made corrections to fit the kstrtoul and handle the return
> > > value.
> >
> > You have to compile test these things. Really kernel programming is not
> > a good way to learn how to program. :(
> >
> > regards,
> > dan carpenter
> >
>
> Appreciate the feedback, have modified the patch, tested and confirmed
> it builds.

No. It's still really wrong. One of the key differences between
kstrtoul() and simple_strtoul() is that simple_strtoul() gives you a
pointer to the end of the string.

It's actually best to use simple_strtoul() here. Checkpatch.pl is
wrong.

As well the new error handling doesn't work at all.

regards,
dan carpenter

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