Commit 41daf46f authored Dec 04, 2017 by Nogah Frankel Committed by Greg Kroah-Hartman Feb 25, 2018

net_sched: red: Avoid devision by zero




[ Upstream commit 5c472203421ab4f928aa1ae9e1dbcfdd80324148 ]

Do not allow delta value to be zero since it is used as a divisor.

Fixes: 8af2a218 ("sch_red: Adaptative RED AQM")
Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent fd0c7c58

include/net/red.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -178,7 +178,7 @@ static inline void red_set_parms(struct red_parms *p,
		p->qth_max = qth_max << Wlog;
		p->Wlog = Wlog;
		p->Plog = Plog;
		if (delta < 0)
		if (delta <= 0)
		delta = 1;
		p->qth_delta = delta;
		if (!max_P) {