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From: Anthony Liguori <anthony@codemonkey.ws>
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Date: Wed, 21 Jan 2009 18:58:51 +0000
Subject: [Qemu-devel] [6387] Adds null check for DisplayStatus (Stefano
	Stabellini)
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Revision: 6387
          http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=6387
Author:   aliguori
Date:     2009-01-21 18:58:51 +0000 (Wed, 21 Jan 2009)

Log Message:
-----------
Adds null check for DisplayStatus (Stefano Stabellini)

Allocate a DisplaySurface in dumb_display_init if none else does it.
The DisplaySurface will be used for the qemu monitor, serial and
parallel ports, etc.

Signed-off-by: Andrew May  <acmay@acmay.homeip.net>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

Modified Paths:
--------------
    trunk/vl.c

Modified: trunk/vl.c
===================================================================
--- trunk/vl.c	2009-01-21 18:31:42 UTC (rev 6386)
+++ trunk/vl.c	2009-01-21 18:58:51 UTC (rev 6387)
@@ -2778,6 +2778,11 @@
 static void dumb_display_init(void)
 {
     DisplayState *ds = qemu_mallocz(sizeof(DisplayState));
+    if (ds == NULL) {
+        fprintf(stderr, "dumb_display_init: DisplayState allocation failed\n");
+        exit(1);
+    }
+    ds->surface = qemu_create_displaysurface(640, 480, 32, 640 * 4);
     register_displaystate(ds);
 }