From: "Yan Zheng" <yanzheng@21cn.com>

Hello,

igrab return NULL on error.

Signed-off-by: Yan Zheng <yanzheng@21cn.com>
Cc: Davide Libenzi <davidel@xmailserver.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 fs/anon_inodes.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff -puN fs/anon_inodes.c~anon_inodesc-fix-error-check-in-anon_inode_getfd fs/anon_inodes.c
--- a/fs/anon_inodes.c~anon_inodesc-fix-error-check-in-anon_inode_getfd
+++ a/fs/anon_inodes.c
@@ -87,8 +87,8 @@ int anon_inode_getfd(int *pfd, struct in
 		return -ENFILE;
 
 	inode = igrab(anon_inode_inode);
-	if (IS_ERR(inode)) {
-		error = PTR_ERR(inode);
+	if (!inode) {
+		error = -ENOENT;
 		goto err_put_filp;
 	}
 
_