X-Git-Url: https://git.ozlabs.org/?p=ccan;a=blobdiff_plain;f=ccan%2Fidtree%2Fidtree.c;fp=ccan%2Fidtree%2Fidtree.c;h=6e75450e67e85af287a9967cd7e88af66e147a5b;hp=5bd8882220868d02d4d172ded3967643f6507b17;hb=36a15d7dee063b6b8ce0480482969e4ba49460a4;hpb=fb33661a05d2e42b675f4d84718312b400ae52a4

diff --git a/ccan/idtree/idtree.c b/ccan/idtree/idtree.c
index 5bd88822..6e75450e 100644
--- a/ccan/idtree/idtree.c
+++ b/ccan/idtree/idtree.c
@@ -278,7 +278,7 @@ void *idtree_lookup(const struct idtree *idp, int id)
 	 * present.  If so, tain't one of ours!
 	 */
 	if (n + IDTREE_BITS < 31 &&
-	    (id & ~(~0 << MAX_ID_SHIFT)) >> (n + IDTREE_BITS))
+	    (id & ~(~0U << MAX_ID_SHIFT)) >> (n + IDTREE_BITS))
 	     return NULL;
 
 	/* Mask off upper bits we don't use for the search. */