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Message-Id: <20080215131922.0d0dcb08.akpm@linux-foundation.org>
Date: Fri, 15 Feb 2008 13:19:22 -0800
From: Andrew Morton <akpm@...ux-foundation.org>
To: Harvey Harrison <harvey.harrison@...il.com>
Cc: rathamahata@...4.ru, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] befs: fix sparse warning in linuxvfs.c
On Fri, 15 Feb 2008 10:46:04 -0800
Harvey Harrison <harvey.harrison@...il.com> wrote:
> Use link as the variable name to avoid shadowing the arg.
>
> fs/befs/linuxvfs.c:492:8: warning: symbol 'p' shadows an earlier one
> fs/befs/linuxvfs.c:488:77: originally declared here
>
> Signed-off-by: Harvey Harrison <harvey.harrison@...il.com>
> ---
> This should be checked in case there is a latent bug here. Should it
> be the arg *p getting freed, or the local var *p that was shadowing
> it?
>
The code looks OK - the name was allocated in befs_follow_link() and was
saved away with nd_set_link().
>
> diff --git a/fs/befs/linuxvfs.c b/fs/befs/linuxvfs.c
> index 82123ff..e8717de 100644
> --- a/fs/befs/linuxvfs.c
> +++ b/fs/befs/linuxvfs.c
> @@ -489,9 +489,9 @@ static void befs_put_link(struct dentry *dentry, struct nameidata *nd, void *p)
> {
> befs_inode_info *befs_ino = BEFS_I(dentry->d_inode);
> if (befs_ino->i_flags & BEFS_LONG_SYMLINK) {
> - char *p = nd_get_link(nd);
> - if (!IS_ERR(p))
> - kfree(p);
> + char *link = nd_get_link(nd);
> + if (!IS_ERR(link))
> + kfree(link);
> }
> }
>
> --
> 1.5.4.1.1278.gc75be
>
>
--
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