[tkreuzer] 49458: [WIN32K] - Make InitVideo return NTSTATUS and properly handle failure - Silence a DPRINT, improve a DPRINT

Author: tkreuzer
Date: Wed Nov  3 12:20:07 2010
New Revision: 49458

URL: http://svn.reactos.org/svn/reactos?rev=49458&view=rev
Log:
[WIN32K]
- Make InitVideo return NTSTATUS and properly handle failure
- Silence a DPRINT, improve a DPRINT

Modified:
    trunk/reactos/subsystems/win32/win32k/eng/device.c
    trunk/reactos/subsystems/win32/win32k/ntuser/display.c
    trunk/reactos/subsystems/win32/win32k/ntuser/ntuser.c

Modified: trunk/reactos/subsystems/win32/win32k/eng/device.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/win32/win32k/en…
==============================================================================
--- trunk/reactos/subsystems/win32/win32k/eng/device.c [iso-8859-1] (original)
+++ trunk/reactos/subsystems/win32/win32k/eng/device.c [iso-8859-1] Wed Nov  3 12:20:07
2010
@@ -52,7 +52,7 @@
     PDEVMODEW pdm, pdmEnd;
     PLDEVOBJ pldev;
 
-    DPRINT1("EngpRegisterGraphicsDevice(%S)\n", pustrDeviceName->Buffer);
+    DPRINT("EngpRegisterGraphicsDevice(%wZ)\n", pustrDeviceName);
 
     /* Allocate a GRAPHICS_DEVICE structure */
     pGraphicsDevice = ExAllocatePoolWithTag(PagedPool,
@@ -71,7 +71,7 @@
                                       &pDeviceObject);
     if (!NT_SUCCESS(Status))
     {
-        DPRINT1("Could not open driver, 0x%lx\n", Status);
+        DPRINT1("Could not open driver %wZ, 0x%lx\n", pustrDeviceName,
Status);
         ExFreePoolWithTag(pGraphicsDevice, GDITAG_GDEVICE);
         return NULL;
     }

Modified: trunk/reactos/subsystems/win32/win32k/ntuser/display.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/win32/win32k/nt…
==============================================================================
--- trunk/reactos/subsystems/win32/win32k/ntuser/display.c [iso-8859-1] (original)
+++ trunk/reactos/subsystems/win32/win32k/ntuser/display.c [iso-8859-1] Wed Nov  3
12:20:07 2010
@@ -147,10 +147,9 @@
     return pGraphicsDevice;
 }
 
-BOOL
-InitVideo(
-    PUNICODE_STRING pustrRegPath,
-    FLONG flags)
+NTSTATUS
+NTAPI
+InitVideo()
 {
     ULONG iDevNum, iVGACompatible = -1, ulMaxObjectNumber = 0;
     WCHAR awcDeviceName[20];
@@ -160,8 +159,9 @@
     ULONG cbValue;
     HKEY hkey;
 
-    DPRINT1("----------------------------- InitVideo()
-------------------------------\n");
-
+    DPRINT("----------------------------- InitVideo()
-------------------------------\n");
+
+    /* Open the key for the boot command line */
     Status =
RegOpenKey(L"\\REGISTRY\\MACHINE\\SYSTEM\\CurrentControlSet\\Control",
&hkey);
     if (NT_SUCCESS(Status))
     {
@@ -185,7 +185,7 @@
     if (!NT_SUCCESS(Status))
     {
         DPRINT1("Could not open device registry key!\n");
-        ASSERT(FALSE);
+        return Status;
     }
 
     /* Read the name of the VGA adapter */
@@ -220,7 +220,9 @@
             continue;
         }
 
+        /* Initialize the driver for this device */
         pGraphicsDevice = InitDisplayDriver(awcDeviceName, awcBuffer);
+        if (!pGraphicsDevice) continue;
 
         /* Check if this is the VGA adapter */
         if (iDevNum == iVGACompatible)
@@ -235,7 +237,15 @@
             gpPrimaryGraphicsDevice = pGraphicsDevice;
     }
 
+    /* Close the device map registry key */
     ZwClose(hkey);
+
+    /* Check if we had any success */
+    if (!gpPrimaryGraphicsDevice)
+    {
+        DPRINT1("No usable display driver was found.\n");
+        return STATUS_UNSUCCESSFUL;
+    }
 
     if (gbBaseVideo)
     {

Modified: trunk/reactos/subsystems/win32/win32k/ntuser/ntuser.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/win32/win32k/nt…
==============================================================================
--- trunk/reactos/subsystems/win32/win32k/ntuser/ntuser.c [iso-8859-1] (original)
+++ trunk/reactos/subsystems/win32/win32k/ntuser/ntuser.c [iso-8859-1] Wed Nov  3 12:20:07
2010
@@ -82,8 +82,9 @@
    return STATUS_SUCCESS;
 }
 
-BOOL
-InitVideo(ULONG);
+NTSTATUS
+NTAPI
+InitVideo();
 
 NTSTATUS
 NTAPI
@@ -91,11 +92,16 @@
   HANDLE  hPowerRequestEvent,
   HANDLE  hMediaRequestEvent)
 {
+    NTSTATUS Status;
+
 // Set W32PF_Flags |= (W32PF_READSCREENACCESSGRANTED | W32PF_IOWINSTA)
 // Create Object Directory,,, Looks like create workstation.
"\\Windows\\WindowStations"
 // Create Event for Diconnect Desktop.
-    InitVideo(0);
-// Initialize Video.
+
+    /* Initialize Video. */
+    Status = InitVideo();
+    if (!NT_SUCCESS(Status)) return Status;
+
 // {
 //     DrvInitConsole.
 //     DrvChangeDisplaySettings.