From a0f6b55d280a098ab56cab2596fc49a044ebfd1c Mon Sep 17 00:00:00 2001
From: Axel Burri <axel@tty0.ch>
Date: Mon, 25 Jun 2018 13:30:14 +0200
Subject: [PATCH] btrbk: fix regression: undefined array reference when no
 received_uuid present

fixes #239 (@ian-kelling)
---
 btrbk | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/btrbk b/btrbk
index 8fccfe7..f4a76c1 100755
--- a/btrbk
+++ b/btrbk
@@ -2878,10 +2878,10 @@ sub _receive_target_nodes($$)
 
   # match uuid/received_uuid combinations
   my @match;
-  push(@match, @{ $received_uuid_hash->{$uuid} // [] });      # match src.uuid == target.received_uuid
+  push(@match, @{ $received_uuid_hash->{$uuid} // [] });            # match src.uuid == target.received_uuid
   if($received_uuid) {
-    push(@match, $uuid_hash->{$received_uuid} );              # match src.received_uuid == target.uuid
-    push(@match, @{ $received_uuid_hash->{$received_uuid} }); # match src.received_uuid == target.received_uuid
+    push(@match, $uuid_hash->{$received_uuid} );                    # match src.received_uuid == target.uuid
+    push(@match, @{ $received_uuid_hash->{$received_uuid} // [] }); # match src.received_uuid == target.received_uuid
   }
 
   @ret = grep($_->{readonly}, @match);