diff --git a/net/dccp/proto.c b/net/dccp/proto.c
index 0b715ceb38b58c1b4db312693e7b49382bd6be78..8b613c3017c5e4e2a56e4a51e7d1226c97877f7e 100644
--- a/net/dccp/proto.c
+++ b/net/dccp/proto.c
@@ -506,8 +506,10 @@ static int __init dccp_ctl_sock_init(void)
 #ifdef CONFIG_IP_DCCP_UNLOAD_HACK
 void dccp_ctl_sock_exit(void)
 {
-	if (dccp_ctl_socket != NULL)
+	if (dccp_ctl_socket != NULL) {
 		sock_release(dccp_ctl_socket);
+		dccp_ctl_socket = NULL;
+	}
 }
 
 EXPORT_SYMBOL_GPL(dccp_ctl_sock_exit);