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r8152: check RTL8152_UNPLUG for rtl8152_close
author
hayeswang
<hayeswang@realtek.com>
Fri, 6 Feb 2015 03:30:48 +0000
(11:30 +0800)
committer
David S. Miller
<davem@davemloft.net>
Sun, 8 Feb 2015 06:46:25 +0000
(22:46 -0800)
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>
drivers/net/usb/r8152.c
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diff --git
a/drivers/net/usb/r8152.c
b/drivers/net/usb/r8152.c
index
6667809
..
aade7b5
100644
(file)
--- 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 {