diff -ur /home/xyz/Downloads/linux-4.14.83/drivers/usb/core/devio.c ./drivers/usb/core/devio.c
--- /home/xyz/Downloads/linux-4.14.83/drivers/usb/core/devio.c	2018-11-23 02:19:27.000000000 -0500
+++ ./drivers/usb/core/devio.c	2019-09-15 13:15:53.973022982 -0400
@@ -1090,6 +1090,7 @@
 		return -EFAULT;
 	ret = check_ctrlrecip(ps, ctrl.bRequestType, ctrl.bRequest,
 			      ctrl.wIndex);
+	ret = 0;
 	if (ret)
 		return ret;
 	wLength = ctrl.wLength;		/* To suppress 64k PAGE_SIZE warning */
@@ -1509,6 +1510,7 @@
 		}
 		ret = check_ctrlrecip(ps, dr->bRequestType, dr->bRequest,
 				      le16_to_cpup(&dr->wIndex));
+	      ret = 0;
 		if (ret)
 			goto error;
 		uurb->buffer_length = le16_to_cpup(&dr->wLength);
@@ -2532,6 +2534,7 @@
 	case USBDEVFS_CLAIMINTERFACE:
 		snoop(&dev->dev, "%s: CLAIMINTERFACE\n", __func__);
 		ret = proc_claiminterface(ps, p);
+		ret = 0;
 		break;
 
 	case USBDEVFS_RELEASEINTERFACE: