linux-kernel - Re: [PATCH] jfs: 0 is not valid errno value

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Date:	Mon, 12 May 2008 16:49:49 -0500
From:	Dave Kleikamp <shaggy@...ux.vnet.ibm.com>
To:	Marcin Slusarz <marcin.slusarz@...il.com>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	jfs-discussion@...ts.sourceforge.net,
	Alexander Viro <viro@...iv.linux.org.uk>
Subject: Re: [PATCH] jfs: 0 is not valid errno value

On Sun, 2008-05-11 at 22:08 +0200, Marcin Slusarz wrote:
> ... so return NULL from jfs_lookup
> 
> Signed-off-by: Marcin Slusarz <marcin.slusarz@...il.com>

Signed-off-by: Dave Kleikamp <shaggy@...ux.vnet.ibm.com>

> Cc: jfs-discussion@...ts.sourceforge.net
> Cc: Alexander Viro <viro@...iv.linux.org.uk>
> ---
> is it ok to return NULL from this function?
> compile tested only

Yeah.  I'm not sure how ERR_PTR(0) got in there in the first place.
It's been that way for quite a while.

I'll add it to the jfs git tree.

Thanks,
Shaggy

> ---
>  fs/jfs/namei.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/fs/jfs/namei.c b/fs/jfs/namei.c
> --- a/fs/jfs/namei.c
> +++ b/fs/jfs/namei.c
> @@ -1455,7 +1455,7 @@ static struct dentry *jfs_lookup(struct inode *dip, struct dentry *dentry, struc
>  		free_UCSname(&key);
>  		if (rc == -ENOENT) {
>  			d_add(dentry, NULL);
> -			return ERR_PTR(0);
> +			return NULL;
>  		} else if (rc) {
>  			jfs_err("jfs_lookup: dtSearch returned %d", rc);
>  			return ERR_PTR(rc);
-- 
David Kleikamp
IBM Linux Technology Center

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