From: linzhecheng <linzhech...@huawei.com>
If no kernel driver is active, we can already claim and perform I/O on
it without detaching it.
Signed-off-by: linzhecheng <linzhech...@huawei.com>
Message-id: 20181120083419.17716-1-linzhech...@huawei.com
Signed-off-by: Gerd Hoffmann <kra...@redhat.com>
---
hw/usb/host-libusb.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/hw/usb/host-libusb.c b/hw/usb/host-libusb.c
index f31e9cbbb8..b6602ded4e 100644
--- a/hw/usb/host-libusb.c
+++ b/hw/usb/host-libusb.c
@@ -1120,6 +1120,9 @@ static void usb_host_detach_kernel(USBHostDevice *s)
rc = libusb_kernel_driver_active(s->dh, i);
usb_host_libusb_error("libusb_kernel_driver_active", rc);
if (rc != 1) {
+ if (rc == 0) {
+ s->ifs[i].detached = true;
+ }
continue;
}
trace_usb_host_detach_kernel(s->bus_num, s->addr, i);
--
2.9.3
