From: wengang wang <wen.gang.wang@oracle.com>
Date: Fri, 13 Feb 2009 02:11:47 +0000 (+0800)
Subject: ocfs2: add IO error check in ocfs2_get_sector()
X-Git-Tag: v2.6.29-rc7~44^2
X-Git-Url: http://ftp.safe.ca/?p=safe%2Fjmp%2Flinux-2.6;a=commitdiff_plain;h=28d57d437786eb3e44f1ca3f0f41e7cfe29c6dd4

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>
---

diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c
index 1c3acc4..7ac83a8 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;
 }