From: Miao Xie <miaox@cn.fujitsu.com>
Date: Fri, 12 Sep 2014 10:43:57 +0000 (+0800)
Subject: Btrfs: fix missing error handler if submiting re-read bio fails
X-Git-Tag: firefly_0821_release~176^2~2834^2~40
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=6c387ab20db15f2bd448f7c508e2638101b16ea1;p=firefly-linux-kernel-4.4.55.git

Btrfs: fix missing error handler if submiting re-read bio fails

We forgot to free failure record and bio after submitting re-read bio failed,
fix it.

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>
---

diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index ad04f85ac45d..dc501a9ca227 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -2348,6 +2348,11 @@ static int bio_readpage_error(struct bio *failed_bio, u64 phy_offset,
 	ret = tree->ops->submit_bio_hook(inode, read_mode, bio,
 					 failrec->this_mirror,
 					 failrec->bio_flags, 0);
+	if (ret) {
+		free_io_failure(inode, failrec, 0);
+		bio_put(bio);
+	}
+
 	return ret;
 }