linux-kernel - [PATCH 2/3] autofs - fix error return in autofs_fill

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Date:   Sat, 12 Jan 2019 08:00:33 +0800
From:   Ian Kent <raven@...maw.net>
To:     Andrew Morton <akpm@...ux-foundation.org>
Cc:     autofs mailing list <autofs@...r.kernel.org>,
        linux-fsdevel <linux-fsdevel@...r.kernel.org>,
        Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Pan Bian <bianpan2016@....com>
Subject: [PATCH 2/3] autofs - fix error return in autofs_fill_super()

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.

Signed-off-by: Ian Kent <raven@...maw.net>
---
 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 0e8ea2d9a2bb..078992eee299 100644
--- a/fs/autofs/inode.c
+++ b/fs/autofs/inode.c
@@ -266,8 +266,10 @@ 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;