From 78592d56efaf05a4da94eeb32b4a0ed17f204719 Mon Sep 17 00:00:00 2001
From: Robert Watson <rwatson@FreeBSD.org>
Date: Thu, 18 Mar 2004 14:18:51 +0000
Subject: [PATCH] Correct a bug introduced with the recent clone API chang:
 when the clone event handler for if_tap fails, make sure to clean up clone
 state to prevent a clone memory leak.

---
 sys/net/if_tap.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sys/net/if_tap.c b/sys/net/if_tap.c
index 17f371d9138..670ac690705 100644
--- a/sys/net/if_tap.c
+++ b/sys/net/if_tap.c
@@ -150,6 +150,7 @@ tapmodevent(mod, type, data)
 		clone_setup(&tapclones);
 		eh_tag = EVENTHANDLER_REGISTER(dev_clone, tapclone, 0, 1000);
 		if (eh_tag == NULL) {
+			clone_cleanup(&tapclones);
 			mtx_destroy(&tapmtx);
 			return (ENOMEM);
 		}