setup: free old value before setting `work_tree`

Before assigning to `data->work_tree` in `read_worktree_config()`, free any value we might already have picked up, so that we do not leak it. Signed-off-by: Martin Ågren <martin.agren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Martin Ågren committed Jan 22, 2019 at 22:45 UTC 13019979b811d26f4838d09331c7ddd8223d270d
1 file changed +1
setup.c
+1
@@ -411,6 +411,7 @@ static int read_worktree_config(const char *var, const char *value, void *vdata)
411 } else if (strcmp(var, "core.worktree") == 0) {
412 if (!value)
413 return config_error_nonbool(var);
414 + free(data->work_tree);
415 data->work_tree = xstrdup(value);
416 }
417 return 0;