UPSTREAM: drm/rockchip: dw_hdmi: use encoder enable function

[firefly-linux-kernel-4.4.55.git] / net / ipv4 / igmp.c

diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c
index 6baf36e11808e5c93c2e092139bed60cdacc4c8a..05e4cba14162f3583ec588657af7e8b68546b111 100644 (file)
--- a/net/ipv4/igmp.c
+++ b/net/ipv4/igmp.c
@@ -2126,7 +2126,7 @@ int ip_mc_leave_group(struct sock *sk, struct ip_mreqn *imr)
        ASSERT_RTNL();
 
        in_dev = ip_mc_find_dev(net, imr);
-       if (!in_dev) {
+       if (!imr->imr_ifindex && !imr->imr_address.s_addr && !in_dev) {
                ret = -ENODEV;
                goto out;
        }
@@ -2147,7 +2147,8 @@ int ip_mc_leave_group(struct sock *sk, struct ip_mreqn *imr)
 
                *imlp = iml->next_rcu;
 
-               ip_mc_dec_group(in_dev, group);
+               if (in_dev)
+                       ip_mc_dec_group(in_dev, group);
 
                /* decrease mem now to avoid the memleak warning */
                atomic_sub(sizeof(*iml), &sk->sk_omem_alloc);