[gschneider] 42743: Handle failure of EngCreateClip, spotted by Amine Khaldi

Author: gschneider
Date: Sun Aug 16 21:56:40 2009
New Revision: 42743

URL: http://svn.reactos.org/svn/reactos?rev=42743&view=rev
Log:
Handle failure of EngCreateClip, spotted by Amine Khaldi

Modified:
    trunk/reactos/subsystems/win32/win32k/eng/engmisc.c

Modified: trunk/reactos/subsystems/win32/win32k/eng/engmisc.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/win32/win32k/en…
==============================================================================
--- trunk/reactos/subsystems/win32/win32k/eng/engmisc.c [iso-8859-1] (original)
+++ trunk/reactos/subsystems/win32/win32k/eng/engmisc.c [iso-8859-1] Sun Aug 16 21:56:40
2009
@@ -103,6 +103,12 @@
         ClippedDestRect.bottom = ClippedDestRect.top + psoDest->sizlBitmap.cy -
SrcPoint.y;
       }
     EnterLeave->TrivialClipObj = EngCreateClip();
+    if (EnterLeave->TrivialClipObj == NULL)
+    {
+        EngUnlockSurface(*ppsoOutput);
+        EngDeleteSurface((HSURF)EnterLeave->OutputBitmap);
+        return FALSE;
+    }
     EnterLeave->TrivialClipObj->iDComplexity = DC_TRIVIAL;
     if (ClippedDestRect.left < (*ppsoOutput)->sizlBitmap.cx &&
         0 <= ClippedDestRect.right &&
@@ -115,11 +121,11 @@
                                         EnterLeave->TrivialClipObj, NULL,
                                         &ClippedDestRect, &SrcPoint))
       {
-      EngDeleteClip(EnterLeave->TrivialClipObj);
-      EngFreeMem((*ppsoOutput)->pvBits);
-      EngUnlockSurface(*ppsoOutput);
-      EngDeleteSurface((HSURF)EnterLeave->OutputBitmap);
-      return FALSE;
+          EngDeleteClip(EnterLeave->TrivialClipObj);
+          EngFreeMem((*ppsoOutput)->pvBits);
+          EngUnlockSurface(*ppsoOutput);
+          EngDeleteSurface((HSURF)EnterLeave->OutputBitmap);
+          return FALSE;
       }
     EnterLeave->DestRect.left = DestRect->left;
     EnterLeave->DestRect.top = DestRect->top;