ALSA: usx2y: remove an unneeded check

The test here is always true because S[i].urb is an array not a pointer. Also it's bogus because the intent was to test:

	if (S->urb[i]) {
instead of:
	if (S[i].urb) {

Anway, usb_kill_urb() and usb_free_urb() accept NULL pointers so we can just remove this.

Signed-off-by Dan Carpenter <[email protected]>

sound/usb/usx2y/usbusx2y.c +3 -5

index 1f9bbd5..5a51b18 100644
@@ -305,11 +305,9 @@ static void usX2Y_unlinkSeq(struct snd_usX2Y_AsyncSeq *S)
 {
 	int	i;
 	for (i = 0; i < URBS_AsyncSeq; ++i) {
-		if (S[i].urb) {
-			usb_kill_urb(S->urb[i]);
-			usb_free_urb(S->urb[i]);
-			S->urb[i] = NULL;
-		}
+		usb_kill_urb(S->urb[i]);
+		usb_free_urb(S->urb[i]);
+		S->urb[i] = NULL;
 	}
 	kfree(S->buffer);
 }