[sheepdog] [PATCH 1/2] work queue: allow null main thread

[Liu Yuan]

Signed-off-by: Liu Yuan <namei.unix at gmail.com>
---
 lib/work.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/work.c b/lib/work.c
index b09c0db..9adf622 100644
--- a/lib/work.c
+++ b/lib/work.c
@@ -193,7 +193,8 @@ static void worker_thread_request_done(int fd, int events, void *data)
 			work = list_first_entry(&list, struct work, w_list);
 			list_del(&work->w_list);
 
-			work->done(work);
+			if (work->done)
+				work->done(work);
 			uatomic_dec(&wi->nr_workers);
 		}
 	}
-- 
1.7.9.5