usb: create USBPortOps, move attach there.

Create USBPortOps struct, move the attach function to that struct.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/hw/usb.c b/hw/usb.c
index a326bcfffe..39d29f3daf 100644
--- a/hw/usb.c
+++ b/hw/usb.c
@@ -28,7 +28,7 @@
 
 void usb_attach(USBPort *port, USBDevice *dev)
 {
-    port->attach(port, dev);
+    port->ops->attach(port, dev);
 }
 
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