exit_debugger():

* Only try to cancel the a transfer, if sUseUSBKeyboard is set.
* Set the "_usbPipe" parameter.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42181 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/add-ons/kernel/debugger/usb_keyboard/usb_keyboard.cpp

@@ -176,10 +176,13 @@ enter_debugger(void)
 static void
 exit_debugger(void)
 {
-	// make sure a possibly pending transfer is canceled
-	evaluate_debug_command("uhci_process_transfer cancel");
+	if (sUseUSBKeyboard) {
+		// make sure a possibly pending transfer is canceled
+		set_debug_variable("_usbPipe", (uint64)sUSBPipe);
+		evaluate_debug_command("uhci_process_transfer cancel");
 
-	sUseUSBKeyboard = false;
+		sUseUSBKeyboard = false;
+	}
 }