From 591db5f3bd29f9252ddea68acb428e798001a139 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=D0=9F=D0=B5=D0=BB=D0=B8=D0=BF=D0=B5=D0=BD=D0=BA=D0=BE=20?=
 =?UTF-8?q?=D0=98=D0=B2=D0=B0=D0=BD?= <peri4ko@yandex.ru>
Date: Tue, 5 May 2015 11:56:43 +0000
Subject: [PATCH] git-svn-id: svn://db.shs.com.ru/libs@11
 a8b55f48-bf90-11e4-a774-851b48703e85

---
 qad_blockview/blockview.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/qad_blockview/blockview.cpp b/qad_blockview/blockview.cpp
index 583469e..ee7e019 100644
--- a/qad_blockview/blockview.cpp
+++ b/qad_blockview/blockview.cpp
@@ -803,6 +803,7 @@ BlockBusItem * BlockView::connectionBus(BlockItem * b0, BlockItem * b1) const {
 
 
 QList<BlockBusItem * > BlockView::connectionBuses(BlockItem * b0, BlockItem * b1) const {
+	if (!b0 || !b1) return QList<BlockBusItem * >();
 	QSet<BlockBusItem * > bs0 = b0->connectedBuses().toSet(), bs1 = b1->connectedBuses().toSet();
 	return (bs0 & bs1).values();
 }