Use a dedicated free function to free dsfs.

No functional change: currently, this just wraps the previous sfree
call.

1 files changed, 1 insertions, 1 deletions

diff --git a/dominosa.c b/dominosa.c
index 7a87e4b..8835bbb 100644
--- a/dominosa.c
+++ b/dominosa.c
@@ -510,7 +510,7 @@ static void solver_free_scratch(struct solver_scratch *sc)
     sfree(sc->pc_scratch);
     sfree(sc->pc_scratch2);
     sfree(sc->dc_scratch);
-    sfree(sc->dsf_scratch);
+    dsf_free(sc->dsf_scratch);
     sfree(sc);
 }