From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751877AbbASHPc (ORCPT ); Mon, 19 Jan 2015 02:15:32 -0500 Received: from rtits2.realtek.com ([60.250.210.242]:40520 "EHLO rtits2.realtek.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751462AbbASHN4 (ORCPT ); Mon, 19 Jan 2015 02:13:56 -0500 Authenticated-By: X-SpamFilter-By: BOX Solutions SpamTrap 5.52 with qID t0J7DqAX003954, This message is accepted by code: ctloc85258 From: Hayes Wang To: CC: , , , Hayes Wang Subject: [PATCH net-next 4/7] r8152: check RTL8152_UNPLUG for rtl8152_close Date: Mon, 19 Jan 2015 15:13:34 +0800 Message-ID: <1394712342-15778-122-Taiwan-albertk@realtek.com> X-Mailer: Microsoft Office Outlook 11 In-Reply-To: <1394712342-15778-118-Taiwan-albertk@realtek.com> References: <1394712342-15778-118-Taiwan-albertk@realtek.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [172.21.71.122] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org It is unnecessary to accress the hw register if the device is unplugged. Signed-off-by: Hayes Wang --- drivers/net/usb/r8152.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c index 21f853f..9be642e 100644 --- a/drivers/net/usb/r8152.c +++ b/drivers/net/usb/r8152.c @@ -3064,7 +3064,7 @@ static int rtl8152_close(struct net_device *netdev) netif_stop_queue(netdev); res = usb_autopm_get_interface(tp->intf); - if (res < 0) { + if (res < 0 || test_bit(RTL8152_UNPLUG, &tp->flags)) { rtl_drop_queued_tx(tp); rtl_stop_rx(tp); } else { -- 2.1.0