staging: most: usb: add ep number to log

This patch adds the endpoint number of the USB pipe that reports to be
broken into the log message. It is needed to make debugging for
applications more comfortable.
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/most/usb/usb.c

@@ -354,7 +354,8 @@ static void hdm_write_completion(struct urb *urb)
 			mbo->status = MBO_SUCCESS;
 			break;
 		case -EPIPE:
-			dev_warn(dev, "Broken OUT pipe detected\n");
+			dev_warn(dev, "Broken pipe on ep%02x\n",
+				 mdev->ep_address[channel]);
 			mdev->is_channel_healthy[channel] = false;
 			mdev->clear_work[channel].pipe = urb->pipe;
 			schedule_work(&mdev->clear_work[channel].ws);
@@ -507,7 +508,8 @@ static void hdm_read_completion(struct urb *urb)
 			}
 			break;
 		case -EPIPE:
-			dev_warn(dev, "Broken IN pipe detected\n");
+			dev_warn(dev, "Broken pipe on ep%02x\n",
+				 mdev->ep_address[channel]);
 			mdev->is_channel_healthy[channel] = false;
 			mdev->clear_work[channel].pipe = urb->pipe;
 			schedule_work(&mdev->clear_work[channel].ws);
@@ -517,7 +519,8 @@ static void hdm_read_completion(struct urb *urb)
 			mbo->status = MBO_E_CLOSE;
 			break;
 		case -EOVERFLOW:
-			dev_warn(dev, "Babble on IN pipe detected\n");
+			dev_warn(dev, "Babble on ep%02x\n",
+				 mdev->ep_address[channel]);
 			break;
 		}
 	}