X-Git-Url: https://git.stricted.de/?p=GitHub%2Fmt8127%2Fandroid_kernel_alcatel_ttab.git;a=blobdiff_plain;f=net%2Fipv4%2Ftcp_ipv4.c;fp=net%2Fipv4%2Ftcp_ipv4.c;h=491a6a7b50aae969fae3f834c92fa22caf811553;hp=36fcc193d7cf8800cba4ee5d52bd6311113728f4;hb=073b9047a02b15d6145346d0b94c1aa009d344f0;hpb=47e5ca72da0f3bc71b728cffcbf42bbdda5aa006

diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 36fcc193d7cf..491a6a7b50aa 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -270,10 +270,13 @@ EXPORT_SYMBOL(tcp_v4_connect);
  */
 void tcp_v4_mtu_reduced(struct sock *sk)
 {
-	struct dst_entry *dst;
 	struct inet_sock *inet = inet_sk(sk);
-	u32 mtu = tcp_sk(sk)->mtu_info;
+	struct dst_entry *dst;
+	u32 mtu;
 
+	if ((1 << sk->sk_state) & (TCPF_LISTEN | TCPF_CLOSE))
+		return;
+	mtu = tcp_sk(sk)->mtu_info;
 	dst = inet_csk_update_pmtu(sk, mtu);
 	if (!dst)
 		return;