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c38c83cb70
During both HTB and HFSC class deletion the class is removed from the class hash before calling qdisc_tree_decrease_qlen. This makes the ->get operation in qdisc_tree_decrease_qlen fail, so it passes a NULL pointer to ->qlen_notify, causing an oops. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>