From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Fri, 16 Oct 2009 06:38:46 +0000 (+0000)
Subject: af_packet: mc_drop/flush_mclist changes
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=ad959e76f0fa94d299a8c25cb45de4d1b845e9ce;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

af_packet: mc_drop/flush_mclist changes

We hold RTNL, we can use __dev_get_by_index() instead of dev_get_by_index()

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index dac775e0bc72..ff752c606413 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -1664,11 +1664,9 @@ static int packet_mc_drop(struct sock *sk, struct packet_mreq_max *mreq)
 			if (--ml->count == 0) {
 				struct net_device *dev;
 				*mlp = ml->next;
-				dev = dev_get_by_index(sock_net(sk), ml->ifindex);
-				if (dev) {
+				dev = __dev_get_by_index(sock_net(sk), ml->ifindex);
+				if (dev)
 					packet_dev_mc(dev, ml, -1);
-					dev_put(dev);
-				}
 				kfree(ml);
 			}
 			rtnl_unlock();
@@ -1692,11 +1690,9 @@ static void packet_flush_mclist(struct sock *sk)
 		struct net_device *dev;
 
 		po->mclist = ml->next;
-		dev = dev_get_by_index(sock_net(sk), ml->ifindex);
-		if (dev != NULL) {
+		dev = __dev_get_by_index(sock_net(sk), ml->ifindex);
+		if (dev != NULL)
 			packet_dev_mc(dev, ml, -1);
-			dev_put(dev);
-		}
 		kfree(ml);
 	}
 	rtnl_unlock();