[aandrejevic] 73028: [NTVDM:VBE]: Don't crash if the video mode is invalid.

Author: aandrejevic
Date: Sun Oct 23 17:21:58 2016
New Revision: 73028
URL: http://svn.reactos.org/svn/reactos?rev=73028&view=rev
Log:
[NTVDM:VBE]: Don't crash if the video mode is invalid.
Modified:
    trunk/reactos/subsystems/mvdm/ntvdm/bios/bios32/vbe.c
Modified: trunk/reactos/subsystems/mvdm/ntvdm/bios/bios32/vbe.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/mvdm/ntvdm/bios…
==============================================================================
--- trunk/reactos/subsystems/mvdm/ntvdm/bios/bios32/vbe.c       [iso-8859-1] (original)
+++ trunk/reactos/subsystems/mvdm/ntvdm/bios/bios32/vbe.c       [iso-8859-1] Sun Oct 23
17:21:58 2016
@@ -356,6 +356,7 @@
 BOOLEAN WINAPI VbeSetExtendedVideoMode(BYTE ModeNumber)
 {
     PCVBE_MODE Mode = VbeGetModeByNumber(ModeNumber);
+    if (Mode == NULL) return FALSE;
     /* At this point, Mode->Registers shouldn't be NULL unless the mode is
unimplemented */
     if (Mode->Registers == NULL)