Bluetooth: shell: Fix null check in cmd_conn_phy_update

Null check in case of system failure. Signed-off-by: Kai Ren <renkaikaiser@163.com>
zephyrproject-rtos · Apr 19, 2021 · 5150f7d · 5150f7d
1 parent b6ad85c
commit 5150f7d
Showing 1 changed file with 7 additions and 0 deletions.
diff --git a/subsys/bluetooth/shell/bt.c b/subsys/bluetooth/shell/bt.c
@@ -2141,6 +2141,13 @@ static int cmd_conn_phy_update(const struct shell *shell, size_t argc,
 	struct bt_conn_le_phy_param param;
 	int err;
 
+	if (default_conn == NULL) {
+		shell_error(shell,
+				"%s: at least, one connection is required",
+				shell->ctx->active_cmd.syntax);
+		return -ENOEXEC;
+	}
+
 	param.pref_tx_phy = strtoul(argv[1], NULL, 16);
 	param.pref_rx_phy = param.pref_tx_phy;
 	param.options = BT_CONN_LE_PHY_OPT_NONE;