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| author | Jarek Poplawski <jarkao2@gmail.com> | 2008-10-20 10:37:47 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-10-20 10:37:47 +0400 |
| commit | 9f3ffae0dbce491a3e9871b686342fd5aa854f05 (patch) | |
| tree | dc6aaa3fba97e750a79c7717758472d954ab207c /net/sched/sch_generic.c | |
| parent | 944f750227fa0beb2b440709687415621e2533a4 (diff) | |
| download | linux-9f3ffae0dbce491a3e9871b686342fd5aa854f05.tar.xz | |
pkt_sched: sch_generic: Fix oops in sch_teql
After these commands:
# modprobe sch_teql
# tc qdisc add dev eth0 root teql0
# tc qdisc del dev eth0 root
we get an oops in teql_destroy() when spin_lock is taken from a null
qdisc_sleeping pointer. It's because at the moment teql0 dev haven't
been activated yet, and a qdisc_root_sleeping() is pointing to noop
qdisc's netdev_queue with qdisc_sleeping uninitialized. This patch
fixes this both for noop and noqueue netdev_queues to avoid similar
problems in the future.
Signed-off-by: Jarek Poplawski <jarkao2@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched/sch_generic.c')
| -rw-r--r-- | net/sched/sch_generic.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c index 7b5572d6beb5..93cd30ce6501 100644 --- a/net/sched/sch_generic.c +++ b/net/sched/sch_generic.c @@ -326,6 +326,7 @@ struct Qdisc_ops noop_qdisc_ops __read_mostly = { static struct netdev_queue noop_netdev_queue = { .qdisc = &noop_qdisc, + .qdisc_sleeping = &noop_qdisc, }; struct Qdisc noop_qdisc = { @@ -352,6 +353,7 @@ static struct Qdisc_ops noqueue_qdisc_ops __read_mostly = { static struct Qdisc noqueue_qdisc; static struct netdev_queue noqueue_netdev_queue = { .qdisc = &noqueue_qdisc, + .qdisc_sleeping = &noqueue_qdisc, }; static struct Qdisc noqueue_qdisc = { |