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usb-host: set ifs.detached as true if kernel driver is not active 

If no kernel driver is active, we can already claim and perform I/O on
it without detaching it.

Signed-off-by: linzhecheng <linzhecheng@huawei.com>
Message-id: 20181120083419.17716-1-linzhecheng@huawei.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
linzhecheng 2018-11-20 16:34:19 +08:00 committed by Gerd Hoffmann
parent 7ec9106759
commit 933d2d4bf2
1 changed files with 3 additions and 0 deletions
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3
hw/usb/host-libusb.c
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@ -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);