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-rw-r--r--include/net/genetlink.h5
-rw-r--r--net/netlink/genetlink.c4
2 files changed, 3 insertions, 6 deletions
diff --git a/include/net/genetlink.h b/include/net/genetlink.h
index ace4abf..771af09 100644
--- a/include/net/genetlink.h
+++ b/include/net/genetlink.h
@@ -265,7 +265,7 @@ static inline int genlmsg_multicast_netns(struct genl_family *family,
struct net *net, struct sk_buff *skb,
u32 portid, unsigned int group, gfp_t flags)
{
- if (group >= family->n_mcgrps)
+ if (WARN_ON_ONCE(group >= family->n_mcgrps))
return -EINVAL;
group = family->mcgrp_offset + group;
return nlmsg_multicast(net->genl_sock, skb, portid, group, flags);
@@ -283,9 +283,6 @@ static inline int genlmsg_multicast(struct genl_family *family,
struct sk_buff *skb, u32 portid,
unsigned int group, gfp_t flags)
{
- if (group >= family->n_mcgrps)
- return -EINVAL;
- group = family->mcgrp_offset + group;
return genlmsg_multicast_netns(family, &init_net, skb,
portid, group, flags);
}
diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c
index 7dbc4f7..4518a57 100644
--- a/net/netlink/genetlink.c
+++ b/net/netlink/genetlink.c
@@ -1045,7 +1045,7 @@ static int genlmsg_mcast(struct sk_buff *skb, u32 portid, unsigned long group,
int genlmsg_multicast_allns(struct genl_family *family, struct sk_buff *skb,
u32 portid, unsigned int group, gfp_t flags)
{
- if (group >= family->n_mcgrps)
+ if (WARN_ON_ONCE(group >= family->n_mcgrps))
return -EINVAL;
group = family->mcgrp_offset + group;
return genlmsg_mcast(skb, portid, group, flags);
@@ -1062,7 +1062,7 @@ void genl_notify(struct genl_family *family,
if (nlh)
report = nlmsg_report(nlh);
- if (group >= family->n_mcgrps)
+ if (WARN_ON_ONCE(group >= family->n_mcgrps))
return;
group = family->mcgrp_offset + group;
nlmsg_notify(sk, skb, portid, group, report, flags);
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