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sch_mqprio: Always set num_tc to 0 in mqprio_destroy()

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All the cleanup code in mqprio_destroy() is currently conditional on
priv->qdiscs being non-null, but that condition should only apply to
the per-queue qdisc cleanup.  We should always set the number of
traffic classes back to 0 here.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
This commit is contained in:
Ben Hutchings 2011-02-14 19:02:23 +00:00
parent 263fb5b1bf
commit ac7100ba93
1 changed files with 7 additions and 7 deletions
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14
net/sched/sch_mqprio.c
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@ -29,18 +29,18 @@ static void mqprio_destroy(struct Qdisc *sch)
struct mqprio_sched *priv = qdisc_priv(sch);
unsigned int ntx;
if (!priv->qdiscs)
return;
for (ntx = 0; ntx < dev->num_tx_queues && priv->qdiscs[ntx]; ntx++)
qdisc_destroy(priv->qdiscs[ntx]);
if (priv->qdiscs) {
for (ntx = 0;
ntx < dev->num_tx_queues && priv->qdiscs[ntx];
ntx++)
qdisc_destroy(priv->qdiscs[ntx]);
kfree(priv->qdiscs);
}
if (priv->hw_owned && dev->netdev_ops->ndo_setup_tc)
dev->netdev_ops->ndo_setup_tc(dev, 0);
else
netdev_set_num_tc(dev, 0);
kfree(priv->qdiscs);
}
static int mqprio_parse_opt(struct net_device *dev, struct tc_mqprio_qopt *qopt)