From: Andrey Vagin <avagin@openvz.org>
Date: Tue, 22 Mar 2011 23:35:11 +0000 (-0700)
Subject: fs/devpts/inode.c: correctly check d_alloc_name() return code in devpts_pty_new()
X-Git-Tag: v2.6.39-rc1~206
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=b12d12596992f608f5506a8dabe4d1299594bd1e;hp=e91f90bb0bb10be9cc8efd09a3cf4ecffcad0db1;p=linux-2.6-block.git

fs/devpts/inode.c: correctly check d_alloc_name() return code in devpts_pty_new()

d_alloc_name return NULL in case error, but we expect errno in
devpts_pty_new.

Addresses http://bugzilla.openvz.org/show_bug.cgi?id=1758

Signed-off-by: Andrey Vagin <avagin@openvz.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/fs/devpts/inode.c b/fs/devpts/inode.c
index c6bd815dc794..2f27e578d466 100644
--- a/fs/devpts/inode.c
+++ b/fs/devpts/inode.c
@@ -502,7 +502,7 @@ int devpts_pty_new(struct inode *ptmx_inode, struct tty_struct *tty)
 	mutex_lock(&root->d_inode->i_mutex);
 
 	dentry = d_alloc_name(root, s);
-	if (!IS_ERR(dentry)) {
+	if (dentry) {
 		d_add(dentry, inode);
 		fsnotify_create(root->d_inode, dentry);
 	} else {