isl_tab_detect_redundant: return status instead of isl_tab *

[platform/upstream/isl.git] / isl_convex_hull.c

diff --git a/isl_convex_hull.c b/isl_convex_hull.c
index d50b054..c6f2806 100644 (file)
--- a/isl_convex_hull.c
+++ b/isl_convex_hull.c
@@ -95,12 +95,17 @@ struct isl_basic_map *isl_basic_map_convex_hull(struct isl_basic_map *bmap)
 
        tab = isl_tab_from_basic_map(bmap);
        tab = isl_tab_detect_implicit_equalities(tab);
-       tab = isl_tab_detect_redundant(tab);
+       if (isl_tab_detect_redundant(tab) < 0)
+               goto error;
        bmap = isl_basic_map_update_from_tab(bmap, tab);
        isl_tab_free(tab);
        ISL_F_SET(bmap, ISL_BASIC_MAP_NO_IMPLICIT);
        ISL_F_SET(bmap, ISL_BASIC_MAP_NO_REDUNDANT);
        return bmap;
+error:
+       isl_tab_free(tab);
+       isl_basic_map_free(bmap);
+       return NULL;
 }
 
 struct isl_basic_set *isl_basic_set_convex_hull(struct isl_basic_set *bset)