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r8152: reset tp->speed before autoresuming in open function 

If (tp->speed & LINK_STATUS) is not zero, the rtl8152_resume()
would call rtl_start_rx() before enabling the tx/rx. Avoid this
by resetting it to zero.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
hayeswang 2014-10-29 11:12:16 +08:00 committed by David S. Miller
parent 923e1ee3ff
commit f4c7476b04
1 changed files with 5 additions and 0 deletions
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5
drivers/net/usb/r8152.c
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@ -2891,6 +2891,9 @@ static int rtl8152_open(struct net_device *netdev)
if (res)
goto out;
/* set speed to 0 to avoid autoresume try to submit rx */
tp->speed = 0;
res = usb_autopm_get_interface(tp->intf);
if (res < 0) {
free_all_mem(tp);
@ -2904,6 +2907,8 @@ static int rtl8152_open(struct net_device *netdev)
clear_bit(WORK_ENABLE, &tp->flags);
usb_kill_urb(tp->intr_urb);
cancel_delayed_work_sync(&tp->schedule);
/* disable the tx/rx, if the workqueue has enabled them. */
if (tp->speed & LINK_STATUS)
tp->rtl_ops.disable(tp);
}