[Qemu-devel] [PATCH v2 3/9] usb-ohci: add exit function

[arei.gonglei]

From: Gonglei <arei.gong...@huawei.com>

clean up ohci resource when ohci pci device exit

Signed-off-by: Gonglei <arei.gong...@huawei.com>
---
 hw/usb/hcd-ohci.c | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/hw/usb/hcd-ohci.c b/hw/usb/hcd-ohci.c
index dc1adbf..b513a13 100644
--- a/hw/usb/hcd-ohci.c
+++ b/hw/usb/hcd-ohci.c
@@ -1954,6 +1954,26 @@ static int usb_ohci_initfn_pci(PCIDevice *dev)
     return 0;
 }
 
+static void usb_ohci_exit(PCIDevice *dev)
+{
+    OHCIPCIState *ohci = PCI_OHCI(dev);
+    OHCIState *s = &ohci->state;
+
+    ohci_bus_stop(s);
+
+    if (s->async_td) {
+        usb_cancel_packet(&s->usb_packet);
+        s->async_td = 0;
+    }
+    ohci_stop_endpoints(s);
+
+    memory_region_destroy(&s->mem);
+
+    if (!ohci->masterbus) {
+        usb_bus_release(&s->bus);
+    }
+}
+
 #define TYPE_SYSBUS_OHCI "sysbus-ohci"
 #define SYSBUS_OHCI(obj) OBJECT_CHECK(OHCISysBusState, (obj), TYPE_SYSBUS_OHCI)
 
@@ -2094,6 +2114,7 @@ static void ohci_pci_class_init(ObjectClass *klass, void 
*data)
     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
 
     k->init = usb_ohci_initfn_pci;
+    k->exit = usb_ohci_exit;
     k->vendor_id = PCI_VENDOR_ID_APPLE;
     k->device_id = PCI_DEVICE_ID_APPLE_IPID_USB;
     k->class_id = PCI_CLASS_SERIAL_USB;
-- 
1.7.12.4