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 3550aec2f655ccb1a9a8a04dae5a9bb2df4fdc52..07ceeb8d8f539024447a224c76a6a87cc891e6bb 100644 (file)
--- 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);