From ddb24b5063e3b4c90295bd4ddaab3bfc428ae79b Mon Sep 17 00:00:00 2001

From: Hans de Goede <hdegoede@redhat.com>

Date: Sun, 26 Feb 2012 15:51:50 +0100

Subject: [PATCH 125/140] usb-redir: Return USB_RET_NAK when we've no data for

 an interrupt endpoint

We should return USB_RET_NAK, rather then a 0 sized packet, when we've no data

for an interrupt IN endpoint.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>

---

 usb-redir.c |    5 ++++-

 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/usb-redir.c b/usb-redir.c

index c76e55d..629c87d 100644

--- a/usb-redir.c

+++ b/usb-redir.c

@@ -558,7 +558,10 @@ static int usbredir_handle_interrupt_data(USBRedirDevice *dev,

             /* Check interrupt_error for stream errors */

             status = dev->endpoint[EP2I(ep)].interrupt_error;

             dev->endpoint[EP2I(ep)].interrupt_error = 0;

-            return usbredir_handle_status(dev, status, 0);

+            if (status) {

+                return usbredir_handle_status(dev, status, 0);

+            }

+            return USB_RET_NAK;

         }

         DPRINTF("interrupt-token-in ep %02X status %d len %d\n", ep,

                 intp->status, intp->len);

-- 

1.7.9.3