--- y/drivers/media/rc/imon.c
+++ i/drivers/media/rc/imon.c
@@ -598,6 +598,8 @@ static int send_packet(struct imon_conte
 	int retval = 0;
 	struct usb_ctrlrequest *control_req = NULL;
 
+	if (ictx->tx.busy == true)
+		return -EBUSY;
 	/* Check if we need to use control or interrupt urb */
 	if (!ictx->tx_control) {
 		pipe = usb_sndintpipe(ictx->usbdev_intf0,
@@ -654,6 +656,7 @@ static int send_packet(struct imon_conte
 			pr_err_ratelimited("task interrupted\n");
 		}
 		mutex_lock(&ictx->lock);
+		ictx->tx.busy = false;
 
 		retval = ictx->tx.status;
 		if (retval)