From e3728942dcde89f4b321174dd695d7ee660143d6 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Fri, 7 Sep 2018 11:35:00 +0530
Subject: [PATCH] Fix a small memory leak when creating a new child process

---
 kitty/child.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/kitty/child.c b/kitty/child.c
index e3c533d2a..6df761523 100644
--- a/kitty/child.c
+++ b/kitty/child.c
@@ -16,6 +16,7 @@
 static inline char**
 serialize_string_tuple(PyObject *src) {
     Py_ssize_t sz = PyTuple_GET_SIZE(src);
+
     char **ans = calloc(sz + 1, sizeof(char*));
     if (!ans) fatal("Out of memory");
     for (Py_ssize_t i = 0; i < sz; i++) {
@@ -28,6 +29,13 @@ serialize_string_tuple(PyObject *src) {
     return ans;
 }
 
+static inline void
+free_string_tuple(char** data) {
+    size_t i = 0;
+	while(data[i++]) free(data[i-1]);
+	free(data);
+}
+
 extern char **environ;
 
 static inline void
@@ -125,8 +133,8 @@ spawn(PyObject *self UNUSED, PyObject *args) {
             break;
     }
 #undef exit_on_err
-    free(argv);
-    free(env);
+    free_string_tuple(argv);
+    free_string_tuple(env);
     if (PyErr_Occurred()) return NULL;
     return PyLong_FromLong(pid);
 }