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authorArnaud Patard <apatard@mandriva.com>2006-10-12 22:33:31 +0200
committerFrancois Romieu <romieu@electric-eye.fr.zoreil.com>2006-10-12 22:10:44 +0200
commit733b736c91dd2c556f35dffdcf77e667cf10cefc (patch)
treeaeb1631abe0b6ee60d7216e6dbe7226c66073e3d /drivers/net/r8169.c
parent73f5e28b336772c4b08ee82e5bf28ab872898ee1 (diff)
downloadlinux-733b736c91dd2c556f35dffdcf77e667cf10cefc.tar.bz2
r8169: fix infinite loop during hotplug
Bug reported for PCMCIA. Signed-off-by: Arnaud Patard <apatard@mandriva.com> Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Diffstat (limited to 'drivers/net/r8169.c')
-rw-r--r--drivers/net/r8169.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/net/r8169.c b/drivers/net/r8169.c
index c7309e98f89d..c2c9a86e445c 100644
--- a/drivers/net/r8169.c
+++ b/drivers/net/r8169.c
@@ -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);