1 files changed, 2 insertions, 1 deletions

diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 277d71239d75..2f8039a26b08 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -2578,7 +2578,8 @@ static void __net_exit tcp_sk_exit(struct net *net)
 {
         int cpu;
 
-        module_put(net->ipv4.tcp_congestion_control->owner);
+        if (net->ipv4.tcp_congestion_control)
+                module_put(net->ipv4.tcp_congestion_control->owner);
 
         for_each_possible_cpu(cpu)
                 inet_ctl_sock_destroy(*per_cpu_ptr(net->ipv4.tcp_sk, cpu));