From: Ian Kent <ra...@themaw.net>

[ Upstream commit f585b283e3f025754c45bbe7533fc6e5c4643700 ]

In autofs_fill_super() on error of get inode/make root dentry the return
should be ENOMEM as this is the only failure case of the called
functions.

Link: 
http://lkml.kernel.org/r/154725123240.11260.796773942606871359.stgit@pluto-themaw-net
Signed-off-by: Ian Kent <ra...@themaw.net>
Signed-off-by: Andrew Morton <a...@linux-foundation.org>
Signed-off-by: Linus Torvalds <torva...@linux-foundation.org>
Signed-off-by: Sasha Levin <sas...@kernel.org>
---
 fs/autofs/inode.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/fs/autofs/inode.c b/fs/autofs/inode.c
index 846c052569dd4..3c14a8e45ffb6 100644
--- a/fs/autofs/inode.c
+++ b/fs/autofs/inode.c
@@ -255,8 +255,10 @@ int autofs_fill_super(struct super_block *s, void *data, 
int silent)
        }
        root_inode = autofs_get_inode(s, S_IFDIR | 0755);
        root = d_make_root(root_inode);
-       if (!root)
+       if (!root) {
+               ret = -ENOMEM;
                goto fail_ino;
+       }
        pipe = NULL;
 
        root->d_fsdata = ino;
-- 
2.19.1

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