[cwittich] 66851: [WIN32K] Gracefully handle failure in DrvEnableSurface. patch by Timo Kreuzer

Author: cwittich
Date: Sat Mar 21 16:29:40 2015
New Revision: 66851

URL: http://svn.reactos.org/svn/reactos?rev=66851&view=rev
Log:
[WIN32K]
Gracefully handle failure in DrvEnableSurface.
patch by Timo Kreuzer

Modified:
    trunk/reactos/win32ss/gdi/eng/pdevobj.c

Modified: trunk/reactos/win32ss/gdi/eng/pdevobj.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/win32ss/gdi/eng/pdevobj.c?r...
==============================================================================
--- trunk/reactos/win32ss/gdi/eng/pdevobj.c	[iso-8859-1] (original)
+++ trunk/reactos/win32ss/gdi/eng/pdevobj.c	[iso-8859-1] Sat Mar 21 16:29:40 2015
@@ -217,9 +217,15 @@
     {
         /* Call the drivers DrvEnableSurface */
         hsurf = ppdev->pldev->pfn.EnableSurface(ppdev->dhpdev);
+        if (hsurf== NULL)
+        {
+            DPRINT1("Failed to create PDEV surface!");
+            return NULL;
+        }

/* Get a reference to the surface */
         ppdev->pSurface = SURFACE_ShareLockSurface(hsurf);
+        NT_ASSERT(ppdev->pSurface != NULL);
     }

/* Increment reference count */
@@ -469,7 +475,7 @@
     pSurface = PDEVOBJ_pSurface(ppdevTmp);
     if (!pSurface)
     {
-        DPRINT1("DrvEnableSurface failed\n");
+        DPRINT1("PDEVOBJ_pSurface failed\n");
         goto leave;
     }