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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>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Tomohiro Kusumi 2016-10-11 13:52:36 -07:00 committed by Linus Torvalds
parent 1973a12269
commit 97537b35b6
1 changed files with 2 additions and 1 deletions
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3
fs/autofs4/inode.c
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@ -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;
}