[Sheepdog] [PATCH] farm: fix lookup_trunk_entry

[Liu Yuan]

From: Liu Yuan <tailai.ly at taobao.com>

It should return NULL when 1. not found and 2. create = 0.

Signed-off-by: Liu Yuan <tailai.ly at taobao.com>
---
 sheep/farm/trunk.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/sheep/farm/trunk.c b/sheep/farm/trunk.c
index fabae8a..b9f0b3e 100644
--- a/sheep/farm/trunk.c
+++ b/sheep/farm/trunk.c
@@ -92,7 +92,8 @@ not_found:
 		entry = xzalloc(sizeof(*entry));
 		entry->raw.oid = oid;
 		get_entry(entry, head);
-	}
+	} else
+		entry = NULL;
 out:
 	pthread_mutex_unlock(&hashtable_lock[h]);
 	return entry;
-- 
1.7.8.2