From c3fce26a1fd15bf5024b15e70a30388013c683b6 Mon Sep 17 00:00:00 2001
From: pjd <pjd@FreeBSD.org>
Date: Mon, 5 Jul 2004 13:24:22 +0000
Subject: [PATCH] g_clone_bio() can fail, be ready for this.

Approved by:	le
---
 sys/geom/vinum/geom_vinum.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/sys/geom/vinum/geom_vinum.c b/sys/geom/vinum/geom_vinum.c
index c4e96f4b768d..ebd92e217e06 100644
--- a/sys/geom/vinum/geom_vinum.c
+++ b/sys/geom/vinum/geom_vinum.c
@@ -93,8 +93,12 @@ gv_start(struct bio *bp)
 	case BIO_WRITE:
 	case BIO_DELETE:
 		bp2 = g_clone_bio(bp);
-		bp2->bio_done = g_std_done;
-		g_io_request(bp2, LIST_FIRST(&gp->consumer));
+		if (bp2 == NULL)
+			g_io_deliver(bp, ENOMEM);
+		else {
+			bp2->bio_done = g_std_done;
+			g_io_request(bp2, LIST_FIRST(&gp->consumer));
+		}
 		return;
 	default:
 		g_io_deliver(bp, EOPNOTSUPP);