2011-02-03 16:11:29

by Andrei Vagin

Subject: [PATCH] fs: 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.

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

Signed-off-by: Andrey Vagin <[email protected]>
---
fs/devpts/inode.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/fs/devpts/inode.c b/fs/devpts/inode.c
index 1bb547c..8392c8c 100644
--- a/fs/devpts/inode.c
+++ b/fs/devpts/inode.c
@@ -501,7 +501,7 @@ 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);
}
--
1.7.2.1

2011-02-03 19:46:30

by Andrei Vagin

Subject: Re: [PATCH] fs: Correctly check d_alloc_name() return code in devpts_pty_new

Sorry, I found one more similar place, so will send another patch.

On 02/03/2011 07:07 PM, Andrey Vagin wrote:
> d_alloc_name return NULL in case error, but we expect errno in
> devpts_pty_new.
>
> http://bugzilla.openvz.org/show_bug.cgi?id=1758
>
> Signed-off-by: Andrey Vagin<[email protected]>
> ---
> fs/devpts/inode.c | 2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/fs/devpts/inode.c b/fs/devpts/inode.c
> index 1bb547c..8392c8c 100644
> --- a/fs/devpts/inode.c
> +++ b/fs/devpts/inode.c
> @@ -501,7 +501,7 @@ 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);
> }