linux-kernel - [PATCH 05/18] autofs: Add WARN_ON(1) for non dir/link inode case

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Date:	Fri, 12 Aug 2016 10:47:54 +0800
From:	Ian Kent <raven@...maw.net>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	linux-fsdevel <linux-fsdevel@...r.kernel.org>,
	Tomohiro Kusumi <kusumi.tomohiro@...il.com>,
	autofs mailing list <autofs@...r.kernel.org>,
	Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: [PATCH 05/18] autofs: Add WARN_ON(1) for non dir/link inode case

From: Tomohiro Kusumi <kusumi.tomohiro@...il.com>

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

Signed-off-by: Tomohiro Kusumi <kusumi.tomohiro@...il.com>
Signed-off-by: Ian Kent <raven@...maw.net>
---
 fs/autofs4/inode.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/autofs4/inode.c b/fs/autofs4/inode.c
index 64d721f..0dd4db9 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;
 }