reload: fix memory leak

include/config.h

@@ -94,7 +94,7 @@ struct Config {
     i3Font font;
 
     char *ipc_socket_path;
-    const char *restart_state_path;
+    char *restart_state_path;
 
     layout_t default_layout;
     int container_stack_limit;

src/config.c

@@ -169,6 +169,10 @@ void load_configuration(xcb_connection_t *conn, const char *override_configpath,
 
         /* Get rid of the current font */
         free_font();
+
+        free(config.ipc_socket_path);
+        free(config.restart_state_path);
+        free(config.fake_outputs);
     }
 
     SLIST_INIT(&modes);

src/config_directives.c

@@ -261,6 +261,7 @@ CFGFUN(workspace_back_and_forth, const char *value) {
 }
 
 CFGFUN(fake_outputs, const char *outputs) {
+    free(config.fake_outputs);
     config.fake_outputs = sstrdup(outputs);
 }
 
@@ -313,10 +314,12 @@ CFGFUN(workspace, const char *workspace, const char *output) {
 }
 
 CFGFUN(ipc_socket, const char *path) {
+    free(config.ipc_socket_path);
     config.ipc_socket_path = sstrdup(path);
 }
 
 CFGFUN(restart_state, const char *path) {
+    free(config.restart_state_path);
     config.restart_state_path = sstrdup(path);
 }