[Qemu-devel] [PATCH 8/9] usb: fix interface initialization

[Gerd Hoffmann <kraxel@redhat.com>]

zero is a valid interface number, so don't use it when resetting the
endpoints.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 hw/usb.h      |    2 ++
 hw/usb/core.c |    4 ++--
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/hw/usb.h b/hw/usb.h
index 9cd2f89..7ed8fb8 100644
--- a/hw/usb.h
+++ b/hw/usb.h
@@ -145,6 +145,8 @@
 #define USB_ENDPOINT_XFER_INT		3
 #define USB_ENDPOINT_XFER_INVALID     255
 
+#define USB_INTERFACE_INVALID         255
+
 typedef struct USBBus USBBus;
 typedef struct USBBusOps USBBusOps;
 typedef struct USBPort USBPort;
diff --git a/hw/usb/core.c b/hw/usb/core.c
index fe15be0..0614f76 100644
--- a/hw/usb/core.c
+++ b/hw/usb/core.c
@@ -566,8 +566,8 @@ void usb_ep_reset(USBDevice *dev)
         dev->ep_out[ep].pid = USB_TOKEN_OUT;
         dev->ep_in[ep].type = USB_ENDPOINT_XFER_INVALID;
         dev->ep_out[ep].type = USB_ENDPOINT_XFER_INVALID;
-        dev->ep_in[ep].ifnum = 0;
-        dev->ep_out[ep].ifnum = 0;
+        dev->ep_in[ep].ifnum = USB_INTERFACE_INVALID;
+        dev->ep_out[ep].ifnum = USB_INTERFACE_INVALID;
         dev->ep_in[ep].dev = dev;
         dev->ep_out[ep].dev = dev;
         dev->ep_in[ep].pipeline = false;
-- 
1.7.1