From: Tomohiro Kusumi <kusumi.tomohiro@gmail.com>
Date: Sat, 10 Sep 2016 10:34:23 +0000 (+1000)
Subject: autofs: add WARN_ON(1) for non dir/link inode case
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=9ec1a6e5adaa6b0561c2b6c79c8ba8421a291db9;p=deliverable%2Flinux.git

autofs: add WARN_ON(1) for non dir/link inode case

It's invalid if the given mode is neither dir nor link, so warn on else
case.

Link: http://lkml.kernel.org/r/20160812024754.12352.8536.stgit@pluto.themaw.net
Signed-off-by: Tomohiro Kusumi <kusumi.tomohiro@gmail.com>
Signed-off-by: Ian Kent <raven@themaw.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

diff --git a/fs/autofs4/inode.c b/fs/autofs4/inode.c
index 64d721f89682..0dd4db92c214 100644
--- a/fs/autofs4/inode.c
+++ b/fs/autofs4/inode.c
@@ -368,7 +368,8 @@ struct inode *autofs4_get_inode(struct super_block *sb, umode_t mode)
 		inode->i_fop = &autofs4_dir_operations;
 	} else if (S_ISLNK(mode)) {
 		inode->i_op = &autofs4_symlink_inode_operations;
-	}
+	} else
+		WARN_ON(1);
 
 	return inode;
 }