serial: 8250_bcm2835aux: Suppress clk_get error on -EPROBE_DEFER

Suppress a gratuitous error message if devm_clk_get() returns
-EPROBE_DEFER.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
[lukas: extend commit message]
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Reviewed-by: Matthias Brugger <mbrugger@suse.com>
Reviewed-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Tested-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Link: https://lore.kernel.org/r/deafc13cdfd7a31c6a81b0db95adcd3599accc26.1579175223.git.lukas@wunner.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/tty/serial/8250/8250_bcm2835aux.c b/drivers/tty/serial/8250/8250_bcm2835aux.c
index 4997c51..33da683 100644 (file)
--- a/drivers/tty/serial/8250/8250_bcm2835aux.c
+++ b/drivers/tty/serial/8250/8250_bcm2835aux.c
@@ -50,7 +50,8 @@ static int bcm2835aux_serial_probe(struct platform_device *pdev)
        data->clk = devm_clk_get(&pdev->dev, NULL);
        ret = PTR_ERR_OR_ZERO(data->clk);
        if (ret) {
-               dev_err(&pdev->dev, "could not get clk: %d\n", ret);
+               if (ret != -EPROBE_DEFER)
+                       dev_err(&pdev->dev, "could not get clk: %d\n", ret);
                return ret;
        }