[NET_SCHED]: sch_htb: perform qlen adjustment immediately in ->delete
qlen adjustment should happen immediately in ->delete and not in the class destroy function because the reference count will not hit zero in ->delete (sch_api holds a reference) but in ->put. Since the qdisc lock is released between deletion of the class and final destruction this creates an externally visible error in the qlen counter. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
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