D46651.diff
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	diff --git a/sys/net/if_ovpn.c b/sys/net/if_ovpn.c
	--- a/sys/net/if_ovpn.c
	+++ b/sys/net/if_ovpn.c
	@@ -511,6 +511,7 @@
	int fd;
	uint32_t peerid;
	int ret = 0;
	+ bool setcb = false;

	if (nvl == NULL)
	return (EINVAL);
	@@ -631,6 +632,7 @@
	* we're destroying the ifp.
	*/
	soref(sc->so);
	+ setcb = true;
	}

	/* Insert the peer into the list. */
	@@ -638,9 +640,11 @@
	sc->peercount++;

	OVPN_WUNLOCK(sc);
	- ret = udp_set_kernel_tunneling(sc->so, ovpn_udp_input, NULL, sc);
	- MPASS(ret == 0 \|\| ret == EBUSY);
	- ret = 0;
	+
	+ if (setcb) {
	+ ret = udp_set_kernel_tunneling(sc->so, ovpn_udp_input, NULL, sc);
	+ MPASS(ret == 0);
	+ }

	goto done;