From 6a178dee963f4a05dcfdd3eb76f90e9935b074b0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Arttu=20Yl=C3=A4-Outinen?= <arttu.yla-outinen@tut.fi>
Date: Sun, 5 Feb 2017 19:51:31 +0900
Subject: [PATCH] Fix leaking memory when --cqmfile given many times

Any previously allocated CQM file name was not freed when allocating
memory for the new file name.
---
 src/cfg.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/src/cfg.c b/src/cfg.c
index d8e8ef06..dcca593c 100644
--- a/src/cfg.c
+++ b/src/cfg.c
@@ -658,8 +658,15 @@ int kvz_config_parse(kvz_config *cfg, const char *name, const char *value)
     cfg->vui.chroma_loc = atoi(value);
   else if OPT("aud")
     cfg->aud_enable = atobool(value);
-  else if OPT("cqmfile")
-    cfg->cqmfile = strdup(value);
+  else if OPT("cqmfile") {
+    char* cqmfile = strdup(value);
+    if (!cqmfile) {
+      fprintf(stderr, "Failed to allocate memory for CQM file name.\n");
+      return 0;
+    }
+    FREE_POINTER(cfg->cqmfile);
+    cfg->cqmfile = cqmfile;
+  }
   else if OPT("tiles-width-split") {
     int retval = parse_tiles_specification(value, &cfg->tiles_width_count, &cfg->tiles_width_split);