ALSA: usx2y: Add sanity checks for invalid EPs

usx2y driver sets up URBs containing the fixed endpoints without
validation.  This may end up with an oops-like kernel warning when
submitted.

For avoiding it, this patch adds the calls of the new sanity-check
helper for URBs.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

sound/usb/usx2y/usbusx2y.c

@@ -279,6 +279,9 @@ int usX2Y_AsyncSeq04_init(struct usX2Ydev *usX2Y)
 						usX2Y->AS04.buffer + URB_DataLen_AsyncSeq*i, 0,
 						i_usX2Y_Out04Int, usX2Y
 				);
+			err = usb_urb_ep_type_check(usX2Y->AS04.urb[i]);
+			if (err < 0)
+				break;
 		}
 	return err;
 }
@@ -298,6 +301,8 @@ int usX2Y_In04_init(struct usX2Ydev *usX2Y)
 			 usX2Y->In04Buf, 21,
 			 i_usX2Y_In04Int, usX2Y,
 			 10);
+	if (usb_urb_ep_type_check(usX2Y->In04urb))
+		return -EINVAL;
 	return usb_submit_urb(usX2Y->In04urb, GFP_KERNEL);
 }
 

sound/usb/usx2y/usbusx2yaudio.c

@@ -677,6 +677,9 @@ static int usX2Y_rate_set(struct usX2Ydev *usX2Y, int rate)
 			usb_fill_bulk_urb(us->urb[i], usX2Y->dev, usb_sndbulkpipe(usX2Y->dev, 4),
 					  usbdata + i, 2, i_usX2Y_04Int, usX2Y);
 		}
+		err = usb_urb_ep_type_check(us->urb[0]);
+		if (err < 0)
+			goto cleanup;
 		us->submitted =	0;
 		us->len =	NOOF_SETRATE_URBS;
 		usX2Y->US04 =	us;