From mboxrd@z Thu Jan 1 00:00:00 1970 From: 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> References: <1394712342-15778-118-Taiwan-albertk@realtek.com> Mime-Version: 1.0 Content-Type: text/plain Cc: , , , Hayes Wang To: Return-path: In-Reply-To: <1394712342-15778-118-Taiwan-albertk@realtek.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.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