diff options
| -rw-r--r-- | ipc/mqueue.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/ipc/mqueue.c b/ipc/mqueue.c index 0b5ecbe5f045..554ac368be79 100644 --- a/ipc/mqueue.c +++ b/ipc/mqueue.c @@ -731,7 +731,8 @@ asmlinkage long sys_mq_unlink(const char __user *u_name) if (IS_ERR(name)) return PTR_ERR(name); - mutex_lock(&mqueue_mnt->mnt_root->d_inode->i_mutex); + mutex_lock_nested(&mqueue_mnt->mnt_root->d_inode->i_mutex, + I_MUTEX_PARENT); dentry = lookup_one_len(name, mqueue_mnt->mnt_root, strlen(name)); if (IS_ERR(dentry)) { err = PTR_ERR(dentry); |