diff options
Diffstat (limited to 'fs/namespace.c')
| -rw-r--r-- | fs/namespace.c | 16 |
1 files changed, 5 insertions, 11 deletions
diff --git a/fs/namespace.c b/fs/namespace.c index bec51e4e0549..31aefc8e5fa6 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -1880,6 +1880,7 @@ static int do_new_mount(struct path *path, char *type, int flags, int mnt_flags, char *name, void *data) { struct vfsmount *mnt; + int err; if (!type) return -EINVAL; @@ -1892,7 +1893,10 @@ static int do_new_mount(struct path *path, char *type, int flags, if (IS_ERR(mnt)) return PTR_ERR(mnt); - return do_add_mount(mnt, path, mnt_flags); + err = do_add_mount(mnt, path, mnt_flags); + if (err) + mntput(mnt); + return err; } int finish_automount(struct vfsmount *m, struct path *path) @@ -1911,26 +1915,17 @@ int finish_automount(struct vfsmount *m, struct path *path) return -ELOOP; } - /* We need to add the mountpoint to the parent. The filesystem may - * have placed it on an expiry list, and so we need to make sure it - * won't be expired under us if do_add_mount() fails (do_add_mount() - * will eat a reference unconditionally). - */ - mntget(m); err = do_add_mount(m, path, path->mnt->mnt_flags | MNT_SHRINKABLE); if (err) { mnt_clear_expiry(m); mntput(m); mntput(m); - } else { - mntput(m); } return err; } /* * add a mount into a namespace's mount tree - * - this unconditionally eats one of the caller's references to newmnt. */ int do_add_mount(struct vfsmount *newmnt, struct path *path, int mnt_flags) { @@ -1967,7 +1962,6 @@ int do_add_mount(struct vfsmount *newmnt, struct path *path, int mnt_flags) unlock: up_write(&namespace_sem); - mntput(newmnt); return err; } |