From ea742e49e660e2d298dc420a31468942298f33a9 Mon Sep 17 00:00:00 2001
From: Matthew Fernandez <matthew.fernandez@gmail.com>
Date: Sun, 28 Aug 2022 09:04:12 -0700
Subject: [PATCH] gvcolor color: fix unchecked allocation failure

---
 cmd/tools/gvcolor.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/cmd/tools/gvcolor.c b/cmd/tools/gvcolor.c
index e0a1d872c..1cf5fc2d4 100644
--- a/cmd/tools/gvcolor.c
+++ b/cmd/tools/gvcolor.c
@@ -23,6 +23,7 @@
 #define	NC	3		/* size of HSB color vector */
 
 #include <assert.h>
+#include <cgraph/alloc.h>
 #include <cgraph/cgraph.h>
 #include <cgraph/exit.h>
 #include <math.h>
@@ -147,7 +148,7 @@ static void color(Agraph_t * g)
     nn = agnnodes(g);
     assert(nn >= 0);
     size_t nnodes = (size_t)nn;
-    nlist = malloc(nnodes * sizeof(Agnode_t *));
+    nlist = gv_calloc(nnodes, sizeof(Agnode_t *));
     size_t i = 0;
     for (n = agfstnode(g); n; n = agnxtnode(g, n)) {
 	nlist[i++] = n;
-- 
2.50.1