From a04490cbdd30915ac6744e918e610d46f31960dc Mon Sep 17 00:00:00 2001
From: Danila Fedorin <danila.fedorin@gmail.com>
Date: Fri, 5 May 2017 19:48:23 -0700
Subject: [PATCH] Fix bug that would cause a double free if setup files and
 free is called

---
 src/sprs.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/sprs.c b/src/sprs.c
index 1166d5a..ef1271a 100644
--- a/src/sprs.c
+++ b/src/sprs.c
@@ -14,6 +14,8 @@ libds_result sprs_setup(sprs* sprs, int size){
   if(sprs->sparse == NULL || sprs->dense == NULL){
     free(sprs->sparse);
     free(sprs->dense);
+    sprs->sparse = NULL;
+    sprs->dense = NULL;
     result = LIBDS_MALLOC;
   } else {
     sprs->capacity = size;