From: Scott Talbert <scott.talbert@hgst.com>
Date: Mon, 9 May 2016 13:14:28 +0000 (-0400)
Subject: btrfs: fix memory leak during RAID 5/6 device replacement
X-Git-Tag: v4.5.7~7
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7281989d24e3e286ab745f0f5a75ab8ac761854d;p=thirdparty%2Fkernel%2Fstable.git

btrfs: fix memory leak during RAID 5/6 device replacement

commit 4673272f43ae790ab9ec04e38a7542f82bb8f020 upstream.

A 'struct bio' is allocated in scrub_missing_raid56_pages(), but it was never
freed anywhere.

Signed-off-by: Scott Talbert <scott.talbert@hgst.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c
index 160ac3e23270d..ee046f6fffe0c 100644
--- a/fs/btrfs/scrub.c
+++ b/fs/btrfs/scrub.c
@@ -2125,6 +2125,8 @@ static void scrub_missing_raid56_end_io(struct bio *bio)
 	if (bio->bi_error)
 		sblock->no_io_error_seen = 0;
 
+	bio_put(bio);
+
 	btrfs_queue_work(fs_info->scrub_workers, &sblock->work);
 }