From 53acceea0e06c9108714aa8fa56dab2f96368e77 Mon Sep 17 00:00:00 2001 Message-Id: <53acceea0e06c9108714aa8fa56dab2f96368e77.1375955382.git.minovotn@redhat.com> In-Reply-To: <7d8ebc793c9bc4b5058ec1189139e7912e209e19.1375955382.git.minovotn@redhat.com> References: <7d8ebc793c9bc4b5058ec1189139e7912e209e19.1375955382.git.minovotn@redhat.com> From: Alon Levy Date: Thu, 1 Aug 2013 11:53:46 +0200 Subject: [PATCH 27/35] usb-smartcard-reader: Properly NAK interrupt eps when we've no events MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit RH-Author: Alon Levy Message-id: <1375358029-12968-28-git-send-email-alevy@redhat.com> Patchwork-id: 52917 O-Subject: [RHEL-6.5 RHEL-6.4.z qemu-kvm v6 27/30] usb-smartcard-reader: Properly NAK interrupt eps when we've no events Bugzilla: 917860 RH-Acked-by: Hans de Goede RH-Acked-by: Marc-André Lureau RH-Acked-by: Gerd Hoffmann From: Hans de Goede When we've no data to return from the interrupt endpoint, return NAK rather then a 0 length packet. CC: Alon Levy Signed-off-by: Hans de Goede Signed-off-by: Gerd Hoffmann (cherry picked from commit c4020746ff49b2156b4f98672c077d1a3b86fa8b) Conflicts: hw/usb-ccid.c upstream moved status into USBPacket, here we still return it. --- hw/usb-ccid.c | 2 ++ 1 file changed, 2 insertions(+) Signed-off-by: Michal Novotny --- hw/usb-ccid.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/hw/usb-ccid.c b/hw/usb-ccid.c index af4674d..0813886 100644 --- a/hw/usb-ccid.c +++ b/hw/usb-ccid.c @@ -1194,6 +1194,8 @@ static int ccid_handle_data(USBDevice *dev, USBPacket *p) "handle_data: int_in: notify_slot_change %X, " "requested len %d\n", s->bmSlotICCState, len); + } else { + ret = USB_RET_NAK; } break; default: -- 1.7.11.7