X-Git-Url: https://git.ozlabs.org/?p=ccan;a=blobdiff_plain;f=ccan%2Flist%2Flist.c;h=3d5811011bcc1e034dc1571a622162e8bbfeede6;hp=0a9e4e4d2d5d092ef1449b82c4a72781033fadc9;hb=4f14d7bbd5afcda4fd0f1f70e8c9aae2a929c4d4;hpb=a8b248ea9de55316cac4423a99a727ca7b54e0fc

diff --git a/ccan/list/list.c b/ccan/list/list.c
index 0a9e4e4d..3d581101 100644
--- a/ccan/list/list.c
+++ b/ccan/list/list.c
@@ -2,9 +2,9 @@
 #include <stdlib.h>
 #include "list.h"
 
-struct list_head *list_check(struct list_head *h, const char *abortstr)
+struct list_head *list_check(const struct list_head *h, const char *abortstr)
 {
-	struct list_node *n, *p;
+	const struct list_node *n, *p;
 	int count = 0;
 
 	if (h->n.next == &h->n) {
@@ -15,7 +15,7 @@ struct list_head *list_check(struct list_head *h, const char *abortstr)
 				abortstr, h);
 			abort();
 		}
-		return h;
+		return (struct list_head *)h;
 	}
 
 	for (p = &h->n, n = h->n.next; n != &h->n; p = n, n = n->next) {
@@ -29,5 +29,5 @@ struct list_head *list_check(struct list_head *h, const char *abortstr)
 			abort();
 		}
 	}
-	return h;
+	return (struct list_head *)h;
 }