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-rw-r--r--fs/namespace.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/fs/namespace.c b/fs/namespace.c
index 685687d..dfeeab9 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -650,7 +650,6 @@ static int graft_tree(struct vfsmount *mnt, struct nameidata *nd)
attach_mnt(mnt, nd);
list_add_tail(&head, &mnt->mnt_list);
list_splice(&head, current->namespace->list.prev);
- mntget(mnt);
err = 0;
touch_namespace(current->namespace);
}
@@ -702,8 +701,7 @@ static int do_loopback(struct nameidata *nd, char *old_name, int recurse)
spin_lock(&vfsmount_lock);
umount_tree(mnt);
spin_unlock(&vfsmount_lock);
- } else
- mntput(mnt);
+ }
out:
up_write(&current->namespace->sem);
@@ -857,15 +855,17 @@ int do_add_mount(struct vfsmount *newmnt, struct nameidata *nd,
goto unlock;
newmnt->mnt_flags = mnt_flags;
- newmnt->mnt_namespace = current->namespace;
- err = graft_tree(newmnt, nd);
+ if ((err = graft_tree(newmnt, nd)))
+ goto unlock;
- if (err == 0 && fslist) {
+ if (fslist) {
/* add to the specified expiration list */
spin_lock(&vfsmount_lock);
list_add_tail(&newmnt->mnt_expire, fslist);
spin_unlock(&vfsmount_lock);
}
+ up_write(&current->namespace->sem);
+ return 0;
unlock:
up_write(&current->namespace->sem);
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