From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Fri, 2 Mar 2012 18:51:00 +0000 (+0300)
Subject: usb: gadget: dummy_hcd: signedness bug in transfer()
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=b1443ac0e486842c133b8805ee035ab3ff918763;p=linux-beck.git

usb: gadget: dummy_hcd: signedness bug in transfer()

"len" is unsigned so it's never less than zero.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c
index 8cc1a88d21e7..e1cd56c5e2a8 100644
--- a/drivers/usb/gadget/dummy_hcd.c
+++ b/drivers/usb/gadget/dummy_hcd.c
@@ -1352,7 +1352,7 @@ top:
 			len = dummy_perform_transfer(urb, req, len);
 
 			ep->last_io = jiffies;
-			if (len < 0) {
+			if ((int)len < 0) {
 				req->req.status = len;
 			} else {
 				limit -= len;