autofs4 - fix reset pending flag on mount fail

In autofs4_d_automount(), if a mount fail occurs the AUTOFS_INF_PENDING
mount pending flag is not cleared.

One effect of this is when using the "browse" option, directory entry
attributes show up with all "?"s due to the incorrect callback and
subsequent failure return (when in fact no callback should be made).

Signed-off-by: Ian Kent <ikent@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 4 insertions, 2 deletions

diff --git a/fs/autofs4/root.c b/fs/autofs4/root.c
index e7396cfdb109..91b11650722e 100644
--- a/fs/autofs4/root.c
+++ b/fs/autofs4/root.c
@@ -392,10 +392,12 @@ static struct vfsmount *autofs4_d_automount(struct path *path)
                 ino->flags |= AUTOFS_INF_PENDING;
                 spin_unlock(&sbi->fs_lock);
                 status = autofs4_mount_wait(dentry);
-                if (status)
-                        return ERR_PTR(status);
                 spin_lock(&sbi->fs_lock);
                 ino->flags &= ~AUTOFS_INF_PENDING;
+                if (status) {
+                        spin_unlock(&sbi->fs_lock);
+                        return ERR_PTR(status);
+                }
         }
 done:
         if (!(ino->flags & AUTOFS_INF_EXPIRING)) {