usb/ohci: Merge ohci_async_cancel_device() into ohci_child_detach()

These two do the same and only used once so no need to have two
functions, simplify by merging them.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <5fc8ba0bbf55703014d22dd06ab2f9eabaf370bf.1643117600.git.balaton@eik.bme.hu>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>

hw/usb/hcd-ohci.c

@@ -1725,8 +1725,10 @@ static void ohci_attach(USBPort *port1)
     }
 }
 
-static void ohci_async_cancel_device(OHCIState *ohci, USBDevice *dev)
+static void ohci_child_detach(USBPort *port1, USBDevice *dev)
 {
+    OHCIState *ohci = port1->opaque;
+
     if (ohci->async_td &&
         usb_packet_is_inflight(&ohci->usb_packet) &&
         ohci->usb_packet.ep->dev == dev) {
@@ -1735,20 +1737,13 @@ static void ohci_async_cancel_device(OHCIState *ohci, USBDevice *dev)
     }
 }
 
-static void ohci_child_detach(USBPort *port1, USBDevice *child)
-{
-    OHCIState *s = port1->opaque;
-
-    ohci_async_cancel_device(s, child);
-}
-
 static void ohci_detach(USBPort *port1)
 {
     OHCIState *s = port1->opaque;
     OHCIPort *port = &s->rhport[port1->index];
     uint32_t old_state = port->ctrl;
 
-    ohci_async_cancel_device(s, port1->dev);
+    ohci_child_detach(port1, port1->dev);
 
     /* set connect status */
     if (port->ctrl & OHCI_PORT_CCS) {