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-rw-r--r--net/ipv6/ip6_flowlabel.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/net/ipv6/ip6_flowlabel.c b/net/ipv6/ip6_flowlabel.c
index 8550df20f98..f40a08669db 100644
--- a/net/ipv6/ip6_flowlabel.c
+++ b/net/ipv6/ip6_flowlabel.c
@@ -190,14 +190,17 @@ struct ip6_flowlabel * fl6_sock_lookup(struct sock *sk, __be32 label)
label &= IPV6_FLOWLABEL_MASK;
+ read_lock_bh(&ip6_sk_fl_lock);
for (sfl=np->ipv6_fl_list; sfl; sfl = sfl->next) {
struct ip6_flowlabel *fl = sfl->fl;
if (fl->label == label) {
+ read_unlock_bh(&ip6_sk_fl_lock);
fl->lastuse = jiffies;
atomic_inc(&fl->users);
return fl;
}
}
+ read_unlock_bh(&ip6_sk_fl_lock);
return NULL;
}