linux-kernel - [PATCH 4.5 122/128] btrfs: fix memory leak during RAID 5/6 device replacement

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Date:	Sun,  5 Jun 2016 15:24:37 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Scott Talbert <scott.talbert@...t.com>,
	David Sterba <dsterba@...e.com>
Subject: [PATCH 4.5 122/128] btrfs: fix memory leak during RAID 5/6 device replacement

4.5-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Scott Talbert <scott.talbert@...t.com>

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@...t.com>
Signed-off-by: David Sterba <dsterba@...e.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 fs/btrfs/scrub.c |    2 ++
 1 file changed, 2 insertions(+)

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