From 2ae9241429ba97c50016aa5adcd059de32e2eef1 Mon Sep 17 00:00:00 2001
From: phk <phk@FreeBSD.org>
Date: Thu, 1 May 2003 19:24:00 +0000
Subject: [PATCH] When events on a reference is cancelled, check our doorstep
 first, it might be an orphan.

---
 sys/geom/geom_event.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/sys/geom/geom_event.c b/sys/geom/geom_event.c
index 0add6cf1411f..c0ec8e184911 100644
--- a/sys/geom/geom_event.c
+++ b/sys/geom/geom_event.c
@@ -210,9 +210,16 @@ void
 g_cancel_event(void *ref)
 {
 	struct g_event *ep, *epn;
+	struct g_provider *pp;
 	u_int n;
 
 	mtx_lock(&g_eventlock);
+	TAILQ_FOREACH(pp, &g_doorstep, orphan) {
+		if (pp != ref)
+			continue;
+		TAILQ_REMOVE(&g_doorstep, pp, orphan);
+		break;
+	}
 	for (ep = TAILQ_FIRST(&g_events); ep != NULL; ep = epn) {
 		epn = TAILQ_NEXT(ep, events);
 		for (n = 0; n < G_N_EVENTREFS; n++) {