linux-kernel - [065/129] sysfs: checking for NULL instead of ERR

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Message-Id: <20100918191302.922124155@clark.site>
Date:	Sat, 18 Sep 2010 12:12:43 -0700
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...nel.org
Cc:	stable-review@...nel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	Dan Carpenter <error27@...il.com>
Subject: [065/129] sysfs: checking for NULL instead of ERR_PTR

2.6.35-stable review patch.  If anyone has any objections, please let us know.

------------------

From: Dan Carpenter <error27@...il.com>

commit 57f9bdac2510cd7fda58e4a111d250861eb1ebeb upstream.

d_path() returns an ERR_PTR and it doesn't return NULL.

Signed-off-by: Dan Carpenter <error27@...il.com>
Reviewed-by: "Eric W. Biederman" <ebiederm@...ssion.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 fs/sysfs/file.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -340,7 +340,7 @@ static int sysfs_open_file(struct inode
 	char *p;
 
 	p = d_path(&file->f_path, last_sysfs_file, sizeof(last_sysfs_file));
-	if (p)
+	if (!IS_ERR(p))
 		memmove(last_sysfs_file, p, strlen(p) + 1);
 
 	/* need attr_sd for attr and ops, its parent for kobj */


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