From: Josef Bacik <jbacik@fb.com>
Date: Fri, 2 Sep 2016 15:25:43 -0400
Subject: Btrfs: don't leak reloc root nodes on error
Git-commit: 6bdf131fac2336adb1a628f992ba32384f653a55
Patch-mainline: v4.9-rc1
References: pulled from 4.4-stable (4.1-stable had expired)

We don't track the reloc roots in any sort of normal way, so the only way the
root/commit_root nodes get free'd is if the relocation finishes successfully
and
the reloc root is deleted.  Fix this by free'ing them in free_reloc_roots.
Thanks,

Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Acked-by: Jeff Mahoney <jeffm@suse.com>
---
 fs/btrfs/relocation.c | 4 ++++
 1 file changed, 4 insertions(+)