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-rw-r--r--slirp/tcp_subr.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/slirp/tcp_subr.c b/slirp/tcp_subr.c
index dbfd2c673b..32ff452e93 100644
--- a/slirp/tcp_subr.c
+++ b/slirp/tcp_subr.c
@@ -356,6 +356,10 @@ tcp_sockclosed(struct tcpcb *tp)
 	DEBUG_CALL("tcp_sockclosed");
 	DEBUG_ARG("tp = %p", tp);
 
+	if (!tp) {
+		return;
+	}
+
 	switch (tp->t_state) {
 
 	case TCPS_CLOSED:
@@ -374,8 +378,7 @@ tcp_sockclosed(struct tcpcb *tp)
 		tp->t_state = TCPS_LAST_ACK;
 		break;
 	}
-	if (tp)
-		tcp_output(tp);
+	tcp_output(tp);
 }
 
 /*