From: Ian Kent <raven@themaw.net>

It see that the patch tittled "autofs4 - fix pending mount race" is
missing a change that I had recently made.

It's missing a kfree for the case mutex_lock_interruptible() fails
to aquire the wait queue mutex.

Signed-off-by: Ian Kent <raven@themaw.net>
Cc: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 fs/autofs4/waitq.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff -puN fs/autofs4/waitq.c~autofs4-fix-pending-mount-race-fix fs/autofs4/waitq.c
--- a/fs/autofs4/waitq.c~autofs4-fix-pending-mount-race-fix
+++ a/fs/autofs4/waitq.c
@@ -332,8 +332,10 @@ int autofs4_wait(struct autofs_sb_info *
 	qstr.name = name;
 	qstr.hash = full_name_hash(name, qstr.len);
 
-	if (mutex_lock_interruptible(&sbi->wq_mutex))
+	if (mutex_lock_interruptible(&sbi->wq_mutex)) {
+		kfree(qstr.name);
 		return -EINTR;
+	}
 
 	ret = validate_request(&wq, sbi, &qstr, dentry, notify);
 	if (ret <= 0) {
_