[sheepdog] [PATCH] sheep: fix clear_client crash

[Yunkai Zhang]

From: Yunkai Zhang <qiushu.zyk at taobao.com>

We should use list_for_each_entry_safe instead of list_for_each_entry
to loop when we need to delete node in it.

Signed-off-by: Yunkai Zhang <qiushu.zyk at taobao.com>
---
 sheep/sdnet.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sheep/sdnet.c b/sheep/sdnet.c
index 3a6572e..a2a7bc1 100644
--- a/sheep/sdnet.c
+++ b/sheep/sdnet.c
@@ -676,7 +676,7 @@ static void destroy_client(struct client_info *ci)
 
 static void clear_client(struct client_info *ci)
 {
-	struct request *req;
+	struct request *req, *t;
 
 	if (ci->rx_req) {
 		free_request(ci->rx_req);
@@ -688,7 +688,7 @@ static void clear_client(struct client_info *ci)
 		ci->tx_req = NULL;
 	}
 
-	list_for_each_entry(req, &ci->done_reqs, request_list) {
+	list_for_each_entry_safe(req, t, &ci->done_reqs, request_list) {
 		list_del(&req->request_list);
 		free_request(req);
 	}
-- 
1.7.10.4