From 28d57d437786eb3e44f1ca3f0f41e7cfe29c6dd4 Mon Sep 17 00:00:00 2001
From: wengang wang <wen.gang.wang@oracle.com>
Date: Fri, 13 Feb 2009 10:11:47 +0800
Subject: [PATCH] ocfs2: add IO error check in ocfs2_get_sector()

Check for IO error in ocfs2_get_sector().

Signed-off-by: Wengang Wang <wen.gang.wang@oracle.com>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>
---
 fs/ocfs2/super.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c
index 1c3acc4654d8..7ac83a81ee55 100644
--- a/fs/ocfs2/super.c
+++ b/fs/ocfs2/super.c
@@ -1537,6 +1537,13 @@ static int ocfs2_get_sector(struct super_block *sb,
 	unlock_buffer(*bh);
 	ll_rw_block(READ, 1, bh);
 	wait_on_buffer(*bh);
+	if (!buffer_uptodate(*bh)) {
+		mlog_errno(-EIO);
+		brelse(*bh);
+		*bh = NULL;
+		return -EIO;
+	}
+
 	return 0;
 }
 
-- 
2.39.5