From b80923956eb17e089c3aa900ff2e6e2b2a9c72d1 Mon Sep 17 00:00:00 2001
From: Mika Lindqvist <postmaster@raasu.org>
Date: Sun, 4 Oct 2020 02:52:56 +0300
Subject: [PATCH] Fix memory leak in gz_compress() and add NULL check.

---
 test/minigzip.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/test/minigzip.c b/test/minigzip.c
index 4cbb30f4..21cf8a36 100644
--- a/test/minigzip.c
+++ b/test/minigzip.c
@@ -101,9 +101,12 @@ void gz_compress(FILE *in, gzFile out) {
     if (gz_compress_mmap(in, out) == Z_OK) return;
 #endif
     buf = (char *)calloc(BUFLEN, 1);
+    if (buf == NULL) perror("out of memory");
+
     for (;;) {
         len = (int)fread(buf, 1, BUFLEN, in);
         if (ferror(in)) {
+            free(buf);
             perror("fread");
             exit(1);
         }
-- 
2.47.2