qemu/0142-usb-redir-Never-return-USB_RET_NAK-for-async-handled.patch
2012-10-28 14:05:07 -04:00

48 lines
1.7 KiB
Diff

From 262c9bb1e59c2cd561dad1cf9d47c50f07af0e0f Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Fri, 17 Aug 2012 17:27:08 +0200
Subject: [PATCH] usb-redir: Never return USB_RET_NAK for async handled
packets
USB_RET_NAK is not a valid response for async handled packets (and will
trigger an assert as such).
Also drop the warning when receiving a status of cancelled for packets not
cancelled by qemu itself, this can happen when a device gets unredirected
by the usbredir-host while transfers are pending.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
(cherry picked from commit 181133404f520fab40a3ad40d935d91cf3cf546c)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
---
hw/usb/redirect.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/hw/usb/redirect.c b/hw/usb/redirect.c
index 10b4fbb..7f3719b 100644
--- a/hw/usb/redirect.c
+++ b/hw/usb/redirect.c
@@ -1028,11 +1028,14 @@ static int usbredir_handle_status(USBRedirDevice *dev,
case usb_redir_stall:
return USB_RET_STALL;
case usb_redir_cancelled:
- WARNING("returning cancelled packet to HC?\n");
- return USB_RET_NAK;
+ /*
+ * When the usbredir-host unredirects a device, it will report a status
+ * of cancelled for all pending packets, followed by a disconnect msg.
+ */
+ return USB_RET_IOERROR;
case usb_redir_inval:
WARNING("got invalid param error from usb-host?\n");
- return USB_RET_NAK;
+ return USB_RET_IOERROR;
case usb_redir_babble:
return USB_RET_BABBLE;
case usb_redir_ioerror:
--
1.7.12.1