From 7fa682eba154dd3dbf7f0d57a55327132c68f6d1 Mon Sep 17 00:00:00 2001
From: Marco Peereboom <marco@conformal.com>
Date: Fri, 9 Oct 2009 18:26:41 +0000
Subject: [PATCH] Be more careful with pointers in swapwin

---
 scrotwm.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/scrotwm.c b/scrotwm.c
index ad295f7..16363f8 100644
--- a/scrotwm.c
+++ b/scrotwm.c
@@ -52,7 +52,7 @@
 
 static const char	*cvstag = "$scrotwm$";
 
-#define	SWM_VERSION	"0.9.11"
+#define	SWM_VERSION	"0.9.12"
 
 #include <stdio.h>
 #include <stdlib.h>
@@ -1553,6 +1553,8 @@ swapwin(struct swm_region *r, union arg *args)
 			else
 				return;
                 }
+		if (target == NULL || source == NULL)
+			return;
 		source->ws->focus_prev = target;
 		TAILQ_REMOVE(wl, target, entry);
 		TAILQ_INSERT_BEFORE(source, target, entry);
-- 
1.7.10.4