From f40b29ce2a815bcc0787acf6f520a2b74258b785 Mon Sep 17 00:00:00 2001
From: Paul Dagnelie <pcd@delphix.com>
Date: Sun, 26 Apr 2015 15:26:13 -0700
Subject: [PATCH] 5809 Blowaway full receive in v1 pool causes kernel panic
 Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed by: Alex Reece
 <alex@delphix.com> Reviewed by: Will Andrews <will@freebsd.org> Approved by:
 Gordon Ross <gwr@nexenta.com>

---
 usr/src/uts/common/fs/zfs/dmu_send.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/usr/src/uts/common/fs/zfs/dmu_send.c b/usr/src/uts/common/fs/zfs/dmu_send.c
index c4575f8f6d..e4abdc3254 100644
--- a/usr/src/uts/common/fs/zfs/dmu_send.c
+++ b/usr/src/uts/common/fs/zfs/dmu_send.c
@@ -1184,7 +1184,8 @@ dmu_recv_begin_sync(void *arg, dmu_tx_t *tx)
 		}
 		dsobj = dsl_dataset_create_sync(ds->ds_dir, recv_clone_name,
 		    snap, crflags, drba->drba_cred, tx);
-		dsl_dataset_rele(snap, FTAG);
+		if (drba->drba_snapobj != 0)
+			dsl_dataset_rele(snap, FTAG);
 		dsl_dataset_rele(ds, FTAG);
 	} else {
 		dsl_dir_t *dd;
-- 
2.11.4.GIT