brush: null ptr check

[Huw D M Davies]

        Aric Stewart <aric at codeweavers.com>
        An app depends on a NULL return if data == NULL
-- 
Huw Davies
huw at codeweavers.com
Index: objects/brush.c
===================================================================
RCS file: /home/wine/wine/objects/brush.c,v
retrieving revision 1.36
diff -u -r1.36 brush.c
--- objects/brush.c	5 Sep 2003 23:15:42 -0000	1.36
+++ objects/brush.c	13 Nov 2003 17:23:40 -0000
@@ -230,6 +230,9 @@
     BITMAPINFO *info=(BITMAPINFO*)data;
     LOGBRUSH logbrush;
 
+    if (!data)
+        return NULL;
+
     TRACE("%p %ldx%ld %dbpp\n", info, info->bmiHeader.biWidth,
 	  info->bmiHeader.biHeight,  info->bmiHeader.biBitCount);