[PATCH] Return error in case flock_lock_file failure

If flock_lock_file() failed to allocate flock with locks_alloc_lock()
then "error = 0" is returned. Need to return some non-zero.

Signed-off-by: Pavel Emelianov <xemul@openvz.org>
Signed-off-by: Kirill Korotaev <dev@openvz.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/fs/locks.c b/fs/locks.c
index 6f99c0a..ab61a8b 100644 (file)
--- a/fs/locks.c
+++ b/fs/locks.c
@@ -755,6 +755,7 @@ static int flock_lock_file(struct file *filp, struct file_lock *request)
        if (request->fl_type == F_UNLCK)
                goto out;
 
+       error = -ENOMEM;
        new_fl = locks_alloc_lock();
        if (new_fl == NULL)
                goto out;
@@ -781,6 +782,7 @@ static int flock_lock_file(struct file *filp, struct file_lock *request)
        locks_copy_lock(new_fl, request);
        locks_insert_lock(&inode->i_flock, new_fl);
        new_fl = NULL;
+       error = 0;
 
 out:
        unlock_kernel();