Add check for VbeModeInfo->PhysBasePtr != 0.

svn path=/trunk/; revision=20139

diff --git a/reactos/drivers/video/miniport/vbe/vbemp.c b/reactos/drivers/video/miniport/vbe/vbemp.c
index 51c59d9..b3d3610 100644 (file)
--- a/reactos/drivers/video/miniport/vbe/vbemp.c
+++ b/reactos/drivers/video/miniport/vbe/vbemp.c
@@ -344,7 +344,8 @@ VBEInitialize(PVOID HwDeviceExtension)
           VbeModeInfo->XResolution >= 640 &&
           VbeModeInfo->YResolution >= 480 &&
           (VbeModeInfo->MemoryModel == VBE_MEMORYMODEL_PACKEDPIXEL ||
           VbeModeInfo->XResolution >= 640 &&
           VbeModeInfo->YResolution >= 480 &&
           (VbeModeInfo->MemoryModel == VBE_MEMORYMODEL_PACKEDPIXEL ||

-           VbeModeInfo->MemoryModel == VBE_MEMORYMODEL_DIRECTCOLOR))
+           VbeModeInfo->MemoryModel == VBE_MEMORYMODEL_DIRECTCOLOR) &&
+          VbeModeInfo->PhysBasePtr != 0)

       {
          if (VbeModeInfo->ModeAttributes & VBE_MODEATTR_LINEAR)
          {
       {
          if (VbeModeInfo->ModeAttributes & VBE_MODEATTR_LINEAR)
          {