From: Phillip Lougher <phillip@lougher.demon.co.uk>
Date: Fri, 16 Apr 2010 00:01:36 +0000 (+0100)
Subject: squashfs: fix warn_on when root inode is corrupted
X-Git-Tag: submit/tizen_common/20140905.094502~12554^2~2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=1cb08e97389bb603e1b999312d9686c8faf0187a;p=sdk%2Femulator%2Femulator-kernel.git

squashfs: fix warn_on when root inode is corrupted

Fix warn_on triggered by mounting a fsfuzzer corrupted file system, where
the root inode has been corrupted.

Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
Reported-by: Steve Grubb <sgrubb@redhat.com>
---

diff --git a/fs/squashfs/super.c b/fs/squashfs/super.c
index 3550aec2f655..07ceeb8d8f53 100644
--- a/fs/squashfs/super.c
+++ b/fs/squashfs/super.c
@@ -275,7 +275,8 @@ allocate_root:
 
 	err = squashfs_read_inode(root, root_inode);
 	if (err) {
-		iget_failed(root);
+		make_bad_inode(root);
+		iput(root);
 		goto failed_mount;
 	}
 	insert_inode_hash(root);