[patch 10/32] PKT_SCHED act_gact: division by zero

[Chris Wright]

-stable review patch.  If anyone has any objections, please let us know.
------------------

From: David Miller <davem@xxxxxxxxxxxxx>

Not returning -EINVAL, because someone might want to use the value
zero in some future gact_prob algorithm?

Signed-off-by: Kim Nordlund <kim.nordlund@xxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Chris Wright <chrisw@xxxxxxxxxxxx>
---
 net/sched/act_gact.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- linux-2.6.19.orig/net/sched/act_gact.c
+++ linux-2.6.19/net/sched/act_gact.c
@@ -48,14 +48,14 @@ static struct tcf_hashinfo gact_hash_inf
 #ifdef CONFIG_GACT_PROB
 static int gact_net_rand(struct tcf_gact *gact)
 {
-	if (net_random() % gact->tcfg_pval)
+	if (!gact->tcfg_pval || net_random() % gact->tcfg_pval)
 		return gact->tcf_action;
 	return gact->tcfg_paction;
 }
 
 static int gact_determ(struct tcf_gact *gact)
 {
-	if (gact->tcf_bstats.packets % gact->tcfg_pval)
+	if (!gact->tcfg_pval || gact->tcf_bstats.packets % gact->tcfg_pval)
 		return gact->tcf_action;
 	return gact->tcfg_paction;
 }

--
-
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