shithub: lwext4

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ext4_journal: do simple verification on jbd superblock.

--- a/lwext4/ext4_journal.c

+++ b/lwext4/ext4_journal.c

@@ -150,6 +150,12 @@

 	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;