X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=isl_space.c;h=e6f957c48276c3fc8c6b39879abe7279fe4948cb;hb=e15e7382929cb80379440c823f4d0d764fa659f8;hp=bd7d15c7c3ba2005abe56ca7ab2dfb4fe0e0c9a7;hpb=e98192b2942cdf66379eb10dd6ec99d3d82df1f4;p=platform%2Fupstream%2Fisl.git

diff --git a/isl_space.c b/isl_space.c
index bd7d15c..e6f957c 100644
--- a/isl_space.c
+++ b/isl_space.c
@@ -783,6 +783,8 @@ __isl_give isl_space *isl_space_extend(__isl_take isl_space *dim,
 	isl_assert(dim->ctx, dim->n_out <= n_out, goto error);
 
 	dim = isl_space_cow(dim);
+	if (!dim)
+		goto error;
 
 	if (dim->ids) {
 		ids = isl_calloc_array(dim->ctx, isl_id *,
@@ -1547,9 +1549,9 @@ static uint32_t isl_hash_dim(uint32_t hash, __isl_keep isl_space *dim)
 	if (!dim)
 		return hash;
 
-	hash = isl_hash_builtin(hash, dim->nparam);
-	hash = isl_hash_builtin(hash, dim->n_in);
-	hash = isl_hash_builtin(hash, dim->n_out);
+	isl_hash_byte(hash, dim->nparam % 256);
+	isl_hash_byte(hash, dim->n_in % 256);
+	isl_hash_byte(hash, dim->n_out % 256);
 
 	for (i = 0; i < dim->nparam; ++i) {
 		id = get_id(dim, isl_dim_param, i);