usb: musb: gadget: kill unreachable code in musb_g_rx()

musb_g_rx() always returns if next_request() call yields NULL, so the DBG()
near the function's end can never be invoked. Remove it along with unneeded
'return'; also remove the duplicate 'request' check...

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/usb/musb/musb_gadget.c

@@ -775,7 +775,7 @@ void musb_g_rx(struct musb *musb, u8 epnum)
 		musb_writew(epio, MUSB_RXCSR, csr);
 
 		DBG(3, "%s iso overrun on %p\n", musb_ep->name, request);
-		if (request && request->status == -EINPROGRESS)
+		if (request->status == -EINPROGRESS)
 			request->status = -EOVERFLOW;
 	}
 	if (csr & MUSB_RXCSR_INCOMPRX) {
@@ -828,14 +828,8 @@ void musb_g_rx(struct musb *musb, u8 epnum)
 			return;
 	}
 
-	/* analyze request if the ep is hot */
-	if (request)
-		rxstate(musb, to_musb_request(request));
-	else
-		DBG(3, "packet waiting for %s%s request\n",
-				musb_ep->desc ? "" : "inactive ",
-				musb_ep->end_point.name);
-	return;
+	/* Analyze request */
+	rxstate(musb, to_musb_request(request));
 }
 
 /* ------------------------------------------------------------ */