From 4c61cb20a1e18297c0f5da403a88c0bd5872e840 Mon Sep 17 00:00:00 2001
From: Simon Tatham <anakin@pobox.com>
Date: Mon, 22 Jul 2013 07:11:48 +0000
Subject: [PATCH] Add a missing null pointer check in one of the dialog box
 functions.

[originally from svn r9958]
---
 windows/winctrls.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/windows/winctrls.c b/windows/winctrls.c
index c9300cdd..60e32f5e 100644
--- a/windows/winctrls.c
+++ b/windows/winctrls.c
@@ -2366,6 +2366,8 @@ void dlg_set_focus(union control *ctrl, void *dlg)
     struct winctrl *c = dlg_findbyctrl(dp, ctrl);
     int id;
     HWND ctl;
+    if (!c)
+        return;
     switch (ctrl->generic.type) {
       case CTRL_EDITBOX: id = c->base_id + 1; break;
       case CTRL_RADIO: