From df5d32089a3e84f342f43f20f766ef48419449f4 Mon Sep 17 00:00:00 2001
From: Jiebing Li <jiebing.li@intel.com>
Date: Tue, 10 Mar 2015 11:27:10 +0800
Subject: [PATCH] ANDROID: usb: f_mtp: return error code if transfer error in
 receive_file_work function

receive_file_work() function should report error if it detect the urb
is not successfully transfered.

Patchset: mtp

Change-Id: I66898afe6b6ea2c33e6ea4c5ccf47d3a56d002dc
Signed-off-by: Du, Changbin <changbin.du@gmail.com>
Signed-off-by: Wang, Yu <yu.y.wang@intel.com>
Signed-off-by: Russ Weight <russell.h.weight@intel.com>
---
 drivers/usb/gadget/function/f_mtp.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/usb/gadget/function/f_mtp.c b/drivers/usb/gadget/function/f_mtp.c
index d6aa2ea0efc8..1f7201480913 100644
--- a/drivers/usb/gadget/function/f_mtp.c
+++ b/drivers/usb/gadget/function/f_mtp.c
@@ -873,6 +873,10 @@ static void receive_file_work(struct work_struct *data)
 					usb_ep_dequeue(dev->ep_out, read_req);
 				break;
 			}
+			if (read_req->status) {
+				r = read_req->status;
+				break;
+			}
 			/* if xfer_file_length is 0xFFFFFFFF, then we read until
 			 * we get a zero length packet
 			 */