lkml.org 
[lkml]   [2005]   [Oct]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRE: [PATCH 09/14] Big kfree NULL check cleanup - misc remaining drivers
Date
From
> From: Jesper Juhl [mailto:jesper.juhl@gmail.com] 
>
> On 10/13/05, Miller, Mike (OS Dev) <Mike.Miller@hp.com> wrote:
> >
> > I'm not sure I agree that these are pointless checks.
> They're not in
> > the main code path so nothing is lost by checking first.
> What if the
> > pointer is NULL????
> >
>
> If the pointer is NULL then this bit of code in kfree takes
> care of things :
>
> void kfree(const void *objp)
> {
> ...
>
> if (unlikely(!objp))
> return;
> ...
>
> Runtime behaviour is exactely the same.
> kfree checks if the pointer passed to it is NULL in any case
> and just returns if it is.

okay, I'm convinced.

Signed-off-by: Mike Miller <mike.miller@hp.com>


>
>
> --
> Jesper Juhl <jesper.juhl@gmail.com>
> Don't top-post http://www.catb.org/~esr/jargon/html/T/top-post.html
> Plain text mails only, please http://www.expita.com/nomime.html
>
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-10-13 22:41    [W:0.031 / U:0.028 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site