Re: [BlueZ v2 2/7] client: Use g_clear_pointer() to clean up menus

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Hi Bastien,

On Tue, Oct 22, 2024 at 8:01 AM Bastien Nocera <hadess@xxxxxxxxxx> wrote:
>
> This would avoid warnings should the client be NULL.
> ---
>  client/admin.c     | 5 ++---
>  client/assistant.c | 5 ++---
>  client/player.c    | 4 ++--
>  3 files changed, 6 insertions(+), 8 deletions(-)
>
> diff --git a/client/admin.c b/client/admin.c
> index cd9af6f955da..9d48867bc1d7 100644
> --- a/client/admin.c
> +++ b/client/admin.c
> @@ -191,7 +191,7 @@ static void proxy_removed(GDBusProxy *proxy, void *user_data)
>                 admin_policy_status_removed(proxy);
>  }
>
> -static GDBusClient *client;
> +static GDBusClient *client = NULL;
>
>  static void disconnect_handler(DBusConnection *connection, void *user_data)
>  {
> @@ -215,6 +215,5 @@ void admin_add_submenu(void)
>
>  void admin_remove_submenu(void)
>  {
> -       g_dbus_client_unref(client);
> -       client = NULL;
> +       g_clear_pointer(&client, g_dbus_client_unref);

Don't think it is worth bumping the glib dependency just to add a NULL
pointer check, in fact g_dbus_client_unref should be safe to be called
with NULL pointers so I wonder if this is a false positive.

>  }
> diff --git a/client/assistant.c b/client/assistant.c
> index 16e94664a5c3..94052e26fd59 100644
> --- a/client/assistant.c
> +++ b/client/assistant.c
> @@ -390,7 +390,7 @@ static const struct bt_shell_menu assistant_menu = {
>         {} },
>  };
>
> -static GDBusClient * client;
> +static GDBusClient * client = NULL;
>
>  void assistant_add_submenu(void)
>  {
> @@ -409,7 +409,6 @@ void assistant_add_submenu(void)
>
>  void assistant_remove_submenu(void)
>  {
> -       g_dbus_client_unref(client);
> -       client = NULL;
> +       g_clear_pointer(&client, g_dbus_client_unref);
>  }
>
> diff --git a/client/player.c b/client/player.c
> index 188378175486..dea5922d56db 100644
> --- a/client/player.c
> +++ b/client/player.c
> @@ -5694,7 +5694,7 @@ static const struct bt_shell_menu transport_menu = {
>         {} },
>  };
>
> -static GDBusClient *client;
> +static GDBusClient *client = NULL;
>
>  void player_add_submenu(void)
>  {
> @@ -5715,6 +5715,6 @@ void player_add_submenu(void)
>
>  void player_remove_submenu(void)
>  {
> -       g_dbus_client_unref(client);
> +       g_clear_pointer(&client, g_dbus_client_unref);
>         queue_destroy(ios, transport_free);
>  }
> --
> 2.47.0
>
>


-- 
Luiz Augusto von Dentz





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