lkml.org 
[lkml]   [2006]   [Jun]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [V9fs-developer] [Patch] Dead code in fs/9p/vfs_inode.c
The comment is longer than the 10 bytes we save :)

I like defensive programming, but I am not sure it is required in this
case. The function is 30 lines long and it is going to be pretty hard
to make a mistake when it is modified.

I am for removing the if.

Thanks,
Lucho

On 6/29/06, Jan Engelhardt <jengelh@linux01.gwdg.de> wrote:
> >> --- linux-2.6.17-git11/fs/9p/vfs_inode.c.orig 2006-06-29
> >> 00:50:53.000000000 +0200
> >> +++ linux-2.6.17-git11/fs/9p/vfs_inode.c 2006-06-29
> >> 00:51:11.000000000 +0200
> >> @@ -386,9 +386,6 @@ v9fs_inode_from_fid(struct v9fs_session_
> >>
> >> error:
> >> kfree(fcall);
> >> - if (ret)
> >> - iput(ret);
> >> -
> >> return ERR_PTR(err);
> >> }
> >
> > What about when someone changes the code and does have ret != NULL here?
> > This seems like reasonable defensive programming to me.
>
>
> How about a comment:
>
> kfree(fcall);
>
> /* Currently commented out because ret is NULL in any case.
> It is here to remind someone should this condition become
> false in future. */
> /* if(ret != NULL) */
> iput(ret);
>
>
> Jan Engelhardt
> --
> -
> 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/
>
-
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: 2006-06-29 17:18    [W:0.113 / U:0.224 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site