From: Li Qiang <liqiang6-s@360.cn>
Date: Tue, 7 Feb 2017 11:15:03 +0000 (-0800)
Subject: usb: ohci: fix error return code in servicing iso td
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=26f670a244982335cc08943fb1ec099a2c81e42d;p=qmiga%2Fqemu.git

usb: ohci: fix error return code in servicing iso td

It should return 1 if an error occurs when reading iso td.
This will avoid an infinite loop issue in ohci_service_ed_list.

Signed-off-by: Li Qiang <liqiang6-s@360.cn>
Message-id: 5899ac3e.1033240a.944d5.9a2d@mx.google.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---

diff --git a/hw/usb/hcd-ohci.c b/hw/usb/hcd-ohci.c
index c82a92fff7..2cba3e3b5b 100644
--- a/hw/usb/hcd-ohci.c
+++ b/hw/usb/hcd-ohci.c
@@ -725,7 +725,7 @@ static int ohci_service_iso_td(OHCIState *ohci, struct ohci_ed *ed,
     if (ohci_read_iso_td(ohci, addr, &iso_td)) {
         trace_usb_ohci_iso_td_read_failed(addr);
         ohci_die(ohci);
-        return 0;
+        return 1;
     }
 
     starting_frame = OHCI_BM(iso_td.flags, TD_SF);