USB: Add initialization checks to Pipe usages of Device.

Complements the ones added earlier to the module itself.
Should fix the panic portion of #15115.

src/add-ons/kernel/bus_managers/usb/Pipe.cpp

@@ -82,7 +82,11 @@ status_t
 Pipe::SetFeature(uint16 selector)
 {
 	TRACE("set feature %u\n", selector);
-	return ((Device *)Parent())->DefaultPipe()->SendRequest(
+	Device *device = (Device *)Parent();
+	if (device->InitCheck() != B_OK)
+		return B_NO_INIT;
+
+	return device->DefaultPipe()->SendRequest(
 		USB_REQTYPE_STANDARD | USB_REQTYPE_ENDPOINT_OUT,
 		USB_REQUEST_SET_FEATURE,
 		selector,
@@ -98,12 +102,16 @@ Pipe::SetFeature(uint16 selector)
 status_t
 Pipe::ClearFeature(uint16 selector)
 {
+	Device *device = (Device *)Parent();
+	if (device->InitCheck() != B_OK)
+		return B_NO_INIT;
+
 	// clearing a stalled condition resets the data toggle
 	if (selector == USB_FEATURE_ENDPOINT_HALT)
 		SetDataToggle(false);
 
 	TRACE("clear feature %u\n", selector);
-	return ((Device *)Parent())->DefaultPipe()->SendRequest(
+	return device->DefaultPipe()->SendRequest(
 		USB_REQTYPE_STANDARD | USB_REQTYPE_ENDPOINT_OUT,
 		USB_REQUEST_CLEAR_FEATURE,
 		selector,
@@ -120,7 +128,11 @@ status_t
 Pipe::GetStatus(uint16 *status)
 {
 	TRACE("get status\n");
-	return ((Device *)Parent())->DefaultPipe()->SendRequest(
+	Device *device = (Device *)Parent();
+	if (device->InitCheck() != B_OK)
+		return B_NO_INIT;
+
+	return device->DefaultPipe()->SendRequest(
 		USB_REQTYPE_STANDARD | USB_REQTYPE_ENDPOINT_IN,
 		USB_REQUEST_GET_STATUS,
 		0,