From 53543db5d5e3e147c5e03cecb1495d7d50ca43e2 Mon Sep 17 00:00:00 2001 From: hayeswang Date: Fri, 6 Feb 2015 11:30:48 +0800 Subject: [PATCH] r8152: check RTL8152_UNPLUG for rtl8152_close It is unnecessary to accress the hw register if the device is unplugged. Signed-off-by: Hayes Wang Signed-off-by: David S. Miller --- 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 66678093db10..aade7b545f02 100644 --- a/drivers/net/usb/r8152.c +++ b/drivers/net/usb/r8152.c @@ -3046,7 +3046,7 @@ 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 {