diff --git a/drivers/usb/gadget/function/f_mtp.c b/drivers/usb/gadget/function/f_mtp.c
index c1e915cc58fb..316c04ad5611 100644
--- a/drivers/usb/gadget/function/f_mtp.c
+++ b/drivers/usb/gadget/function/f_mtp.c
@@ -812,6 +812,11 @@ static void send_file_work(struct work_struct *data)
 	offset = dev->xfer_file_offset;
 	count = dev->xfer_file_length;
 
+	if (count < 0) {
+		dev->xfer_result = -EINVAL;
+		return;
+	}
+
 	mtp_log("(%lld %lld)\n", offset, count);
 
 	if (dev->xfer_send_header) {
@@ -926,6 +931,11 @@ static void receive_file_work(struct work_struct *data)
 	offset = dev->xfer_file_offset;
 	count = dev->xfer_file_length;
 
+	if (count < 0) {
+		dev->xfer_result = -EINVAL;
+		return;
+	}
+
 	mtp_log("(%lld)\n", count);
 	if (!IS_ALIGNED(count, dev->ep_out->maxpacket))
 		mtp_log("- count(%lld) not multiple of mtu(%d)\n",