[tfaber] 73636: [FREELDR] - Correctly check for vertical retrace in PcVideoSync. CID 513066.

Author: tfaber
Date: Mon Jan 30 13:50:10 2017
New Revision: 73636

URL: http://svn.reactos.org/svn/reactos?rev=73636&view=rev
Log:
[FREELDR]
- Correctly check for vertical retrace in PcVideoSync. CID 513066.

Modified:
    trunk/reactos/boot/freeldr/freeldr/arch/i386/pcvideo.c

Modified: trunk/reactos/boot/freeldr/freeldr/arch/i386/pcvideo.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/boot/freeldr/freeldr/arch/i...
==============================================================================
--- trunk/reactos/boot/freeldr/freeldr/arch/i386/pcvideo.c	[iso-8859-1] (original)
+++ trunk/reactos/boot/freeldr/freeldr/arch/i386/pcvideo.c	[iso-8859-1] Mon Jan 30 13:50:10 2017
@@ -1089,7 +1089,7 @@
 VOID
 PcVideoSync(VOID)
 {
-  while (1 == (READ_PORT_UCHAR((UCHAR*)VIDEOPORT_VERTICAL_RETRACE) & 0x08))
+  while ((READ_PORT_UCHAR((UCHAR*)VIDEOPORT_VERTICAL_RETRACE) & 0x08))
     {
       /*
        * Keep reading the port until bit 3 is clear
@@ -1099,7 +1099,7 @@
        */
     }

-  while (0 == (READ_PORT_UCHAR((UCHAR*)VIDEOPORT_VERTICAL_RETRACE) & 0x08))
+  while (!(READ_PORT_UCHAR((UCHAR*)VIDEOPORT_VERTICAL_RETRACE) & 0x08))
     {
       /*
        * Keep reading the port until bit 3 is set