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authorDavid S. Miller <davem@davemloft.net>2008-11-19 23:33:54 (GMT)
committerDavid S. Miller <davem@davemloft.net>2008-11-19 23:33:54 (GMT)
commitb47300168e770b60ab96c8924854c3b0eb4260eb (patch)
tree8dcdf57ff27c503cf365ae5a98cf30626612b381 /net/sched
parent566521d63720ab47576afb85147e5652993bf1e6 (diff)
downloadlinux-b47300168e770b60ab96c8924854c3b0eb4260eb.tar.xz
net: Do not fire linkwatch events until the device is registered.
Several device drivers try to do things like netif_carrier_off() before register_netdev() is invoked. This is bogus, but too many drivers do this to fix them all up in one go. Reported-by: Folkert van Heusden <folkert@vanheusden.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched')
-rw-r--r--net/sched/sch_generic.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
index 93cd30c..cdcd16f 100644
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -270,6 +270,8 @@ static void dev_watchdog_down(struct net_device *dev)
void netif_carrier_on(struct net_device *dev)
{
if (test_and_clear_bit(__LINK_STATE_NOCARRIER, &dev->state)) {
+ if (dev->reg_state == NETREG_UNINITIALIZED)
+ return;
linkwatch_fire_event(dev);
if (netif_running(dev))
__netdev_watchdog_up(dev);
@@ -285,8 +287,11 @@ EXPORT_SYMBOL(netif_carrier_on);
*/
void netif_carrier_off(struct net_device *dev)
{
- if (!test_and_set_bit(__LINK_STATE_NOCARRIER, &dev->state))
+ if (!test_and_set_bit(__LINK_STATE_NOCARRIER, &dev->state)) {
+ if (dev->reg_state == NETREG_UNINITIALIZED)
+ return;
linkwatch_fire_event(dev);
+ }
}
EXPORT_SYMBOL(netif_carrier_off);