X-Git-Url: http://git.archive.openwrt.org/?p=project%2Flibubox.git;a=blobdiff_plain;f=safe_list.c;h=16f57e084f4bb7dd59afee1366191f5d069a0fec;hp=d9f211f905460b7fb29fa6c27fa8649f94441f67;hb=fd57eea9f37e447814afbf934db626288aac23c4;hpb=7c11f6e91338eb73a1015606e55798d09369b2e8

diff --git a/safe_list.c b/safe_list.c
index d9f211f..16f57e0 100644
--- a/safe_list.c
+++ b/safe_list.c
@@ -86,6 +86,12 @@ void safe_list_add(struct safe_list *list, struct safe_list *head)
 	list_add_tail(&list->list, &head->list);
 }
 
+void safe_list_add_first(struct safe_list *list, struct safe_list *head)
+{
+	list->i = NULL;
+	list_add(&list->list, &head->list);
+}
+
 void safe_list_del(struct safe_list *list)
 {
 	struct safe_list_iterator *i, *next_i, **tail;
@@ -108,7 +114,8 @@ void safe_list_del(struct safe_list *list)
 	next->i = list->i;
 	list->i->head = &next->i;
 	*tail = next_i;
-	next_i->head = tail;
+	if (next_i)
+		next_i->head = tail;
 
 	list->i = NULL;
 }