Don't dereference device objects if they were not referenced

Remove one hack from kbdclass

svn path=/trunk/; revision=21708

reactos/base/setup/usetup/console.c

@@ -52,17 +52,16 @@ ConGetConsoleScreenBufferInfo(PCONSOLE_SCREEN_BUFFER_INFO ConsoleScreenBufferInf
 NTSTATUS
 ConAllocConsole(VOID)
 {
+  UNICODE_STRING ScreenName = RTL_CONSTANT_STRING(L"\\??\\BlueScreen");
+  UNICODE_STRING KeyboardName = RTL_CONSTANT_STRING(L"\\Device\\KeyboardClass0");
   OBJECT_ATTRIBUTES ObjectAttributes;
   IO_STATUS_BLOCK IoStatusBlock;
-  UNICODE_STRING Name;
   NTSTATUS Status;
   CONSOLE_SCREEN_BUFFER_INFO csbi;
 
   /* Open the screen */
-  RtlInitUnicodeString(&Name,
-		       L"\\??\\BlueScreen");
   InitializeObjectAttributes(&ObjectAttributes,
-			     &Name,
+			     &ScreenName,
 			     0,
 			     NULL,
 			     NULL);
@@ -76,10 +75,8 @@ ConAllocConsole(VOID)
     return(Status);
 
   /* Open the keyboard */
-  RtlInitUnicodeString(&Name,
-		       L"\\??\\Keyboard");
   InitializeObjectAttributes(&ObjectAttributes,
-			     &Name,
+			     &KeyboardName,
 			     0,
 			     NULL,
 			     NULL);

reactos/drivers/input/kbdclass/kbdclass.c

@@ -284,7 +284,6 @@ CreateClassDeviceObject(
 	OUT PDEVICE_OBJECT *ClassDO OPTIONAL)
 {
 	PCLASS_DRIVER_EXTENSION DriverExtension;
-	UNICODE_STRING SymbolicLinkName = RTL_CONSTANT_STRING(L"\\??\\Keyboard");
 	ULONG DeviceId = 0;
 	ULONG PrefixLength;
 	UNICODE_STRING DeviceNameU;
@@ -374,10 +373,6 @@ cleanup:
 		DriverExtension->RegistryPath.Buffer,
 		DriverExtension->RegistryPath.MaximumLength);
 
-	/* HACK: 1st stage setup needs a keyboard to open it in user-mode
-	 * Create a link to user space... */
-	IoCreateSymbolicLink(&SymbolicLinkName, &DeviceNameU);
-
 	ExFreePool(DeviceNameU.Buffer);
 
 	if (ClassDO)
@@ -597,7 +592,6 @@ ClassAddDevice(
 	if (!NT_SUCCESS(Status))
 	{
 		DPRINT("ConnectPortDriver() failed with status 0x%08lx\n", Status);
-		ObDereferenceObject(Fdo);
 		goto cleanup;
 	}
 	Fdo->Flags &= ~DO_DEVICE_INITIALIZING;

reactos/drivers/input/mouclass/mouclass.c

@@ -569,7 +569,6 @@ ClassAddDevice(
 	if (!NT_SUCCESS(Status))
 	{
 		DPRINT("ConnectPortDriver() failed with status 0x%08lx\n", Status);
-		ObDereferenceObject(Fdo);
 		goto cleanup;
 	}
 	Fdo->Flags &= ~DO_DEVICE_INITIALIZING;