From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:38459) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gRXBl-0001n6-SV for qemu-devel@nongnu.org; Tue, 27 Nov 2018 01:49:42 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gRXBj-0001NU-0A for qemu-devel@nongnu.org; Tue, 27 Nov 2018 01:49:41 -0500 Received: from mx1.redhat.com ([209.132.183.28]:51062) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1gRXBi-0001GJ-Oi for qemu-devel@nongnu.org; Tue, 27 Nov 2018 01:49:38 -0500 From: Gerd Hoffmann Date: Tue, 27 Nov 2018 07:49:31 +0100 Message-Id: <20181127064932.7299-6-kraxel@redhat.com> In-Reply-To: <20181127064932.7299-1-kraxel@redhat.com> References: <20181127064932.7299-1-kraxel@redhat.com> Subject: [Qemu-devel] [PULL 5/6] usb-host: set ifs.detached as true if kernel driver is not active List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Paolo Bonzini , Eric Blake , Gerd Hoffmann , Markus Armbruster , linzhecheng From: linzhecheng If no kernel driver is active, we can already claim and perform I/O on it without detaching it. Signed-off-by: linzhecheng Message-id: 20181120083419.17716-1-linzhecheng@huawei.com Signed-off-by: Gerd Hoffmann --- 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