serial: uartps: Move alias reading higher in probe()

This cosmetic change is done only for having next patch much easier to
read. Moving id setup higher in probe is not affecting any usage of this
driver and it also simplify error path.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c
index 12d6033df1442b917f1d91d966c6a70cf68c017e..dff39b424662edae4d88e2c91a32478acce5494d 100644 (file)
--- a/drivers/tty/serial/xilinx_uartps.c
+++ b/drivers/tty/serial/xilinx_uartps.c
@@ -1416,6 +1416,16 @@ static int cdns_uart_probe(struct platform_device *pdev)
        if (!port)
                return -ENOMEM;
 
+       /* Look for a serialN alias */
+       id = of_alias_get_id(pdev->dev.of_node, "serial");
+       if (id < 0)
+               id = 0;
+
+       if (id >= CDNS_UART_NR_PORTS) {
+               dev_err(&pdev->dev, "Cannot get uart_port structure\n");
+               return -ENODEV;
+       }
+
        cdns_uart_data->cdns_uart_driver = &cdns_uart_uart_driver;
 
        match = of_match_node(cdns_uart_of_match, pdev->dev.of_node);
@@ -1477,16 +1487,6 @@ static int cdns_uart_probe(struct platform_device *pdev)
                                &cdns_uart_data->clk_rate_change_nb))
                dev_warn(&pdev->dev, "Unable to register clock notifier.\n");
 #endif
-       /* Look for a serialN alias */
-       id = of_alias_get_id(pdev->dev.of_node, "serial");
-       if (id < 0)
-               id = 0;
-
-       if (id >= CDNS_UART_NR_PORTS) {
-               dev_err(&pdev->dev, "Cannot get uart_port structure\n");
-               rc = -ENODEV;
-               goto err_out_notif_unreg;
-       }
 
        /* At this point, we've got an empty uart_port struct, initialize it */
        spin_lock_init(&port->lock);
@@ -1545,7 +1545,6 @@ static int cdns_uart_probe(struct platform_device *pdev)
        pm_runtime_disable(&pdev->dev);
        pm_runtime_set_suspended(&pdev->dev);
        pm_runtime_dont_use_autosuspend(&pdev->dev);
-err_out_notif_unreg:
 #ifdef CONFIG_COMMON_CLK
        clk_notifier_unregister(cdns_uart_data->uartclk,
                        &cdns_uart_data->clk_rate_change_nb);