pwm: renesas-tpu: Make use of dev_err_probe()

The added benefit is that the error code is mentioned in the error message
and its usage is a bit more compact than open coding it. This also
improves behaviour in case devm_clk_get() returns -EPROBE_DEFER.

While touching this code, consistently start error messages with upper
case.

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>

diff --git a/drivers/pwm/pwm-renesas-tpu.c b/drivers/pwm/pwm-renesas-tpu.c
index 4381df9..c3ae78e 100644 (file)
--- a/drivers/pwm/pwm-renesas-tpu.c
+++ b/drivers/pwm/pwm-renesas-tpu.c
@@ -398,10 +398,8 @@ static int tpu_probe(struct platform_device *pdev)
                return PTR_ERR(tpu->base);
 
        tpu->clk = devm_clk_get(&pdev->dev, NULL);
-       if (IS_ERR(tpu->clk)) {
-               dev_err(&pdev->dev, "cannot get clock\n");
-               return PTR_ERR(tpu->clk);
-       }
+       if (IS_ERR(tpu->clk))
+               return dev_err_probe(&pdev->dev, PTR_ERR(tpu->clk), "Failed to get clock\n");
 
        /* Initialize and register the device. */
        platform_set_drvdata(pdev, tpu);
@@ -414,9 +412,8 @@ static int tpu_probe(struct platform_device *pdev)
 
        ret = pwmchip_add(&tpu->chip);
        if (ret < 0) {
-               dev_err(&pdev->dev, "failed to register PWM chip\n");
                pm_runtime_disable(&pdev->dev);
-               return ret;
+               return dev_err_probe(&pdev->dev, ret, "Failed to register PWM chip\n");
        }
 
        return 0;