ext4_journal: do simple verification on jbd superblock.

diff --git a/lwext4/ext4_journal.c b/lwext4/ext4_journal.c
index e798590cb6a0e938775d9d96efb692ab3832f4e2..83647b782eb5bc508209c41975ab049b8cd6d8a2 100644 (file)
--- a/lwext4/ext4_journal.c
+++ b/lwext4/ext4_journal.c
@@ -150,6 +150,12 @@ int jbd_get_fs(struct ext4_fs *fs,
        if (rc != EOK) {
                memset(jbd_fs, 0, sizeof(struct jbd_fs));
                ext4_fs_put_inode_ref(&jbd_fs->inode_ref);
+               return rc;
+       }
+       if (!jbd_verify_sb(&jbd_fs->sb)) {
+               memset(jbd_fs, 0, sizeof(struct jbd_fs));
+               ext4_fs_put_inode_ref(&jbd_fs->inode_ref);
+               rc = EIO;
        }
 
        return rc;