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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>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Hans de Goede 2012-02-26 16:14:47 +01:00 committed by Gerd Hoffmann
parent d86b8853e1
commit e64722108c
1 changed files with 4 additions and 1 deletions
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usb-redir.c
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@ -548,7 +548,10 @@ 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);