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r8169: fix infinite loop during hotplug

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Bug reported for PCMCIA.

Signed-off-by: Arnaud Patard <apatard@mandriva.com>
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
This commit is contained in:
Arnaud Patard 2006-10-12 22:33:31 +02:00 committed by Francois Romieu
parent 73f5e28b33
commit 733b736c91
1 changed files with 5 additions and 1 deletions
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6
drivers/net/r8169.c
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@ -2702,6 +2702,7 @@ static void rtl8169_down(struct net_device *dev)
struct rtl8169_private *tp = netdev_priv(dev);
void __iomem *ioaddr = tp->mmio_addr;
unsigned int poll_locked = 0;
unsigned int intrmask;
rtl8169_delete_timer(dev);
@ -2740,8 +2741,11 @@ core_down:
* 2) dev->change_mtu
* -> rtl8169_poll can not be issued again and re-enable the
* interruptions. Let's simply issue the IRQ down sequence again.
*
* No loop if hotpluged or major error (0xffff).
*/
if (RTL_R16(IntrMask))
intrmask = RTL_R16(IntrMask);
if (intrmask && (intrmask != 0xffff))
goto core_down;
rtl8169_tx_clear(tp);