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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 <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
hayeswang 2015-02-06 11:30:48 +08:00 committed by David S. Miller
parent 51d979faa2
commit 53543db5d5
1 changed files with 1 additions and 1 deletions
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2
drivers/net/usb/r8152.c
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@ -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 {