In the probe path, dev_err() can be replaced with dev_err_probe() which will check if error code is -EPROBE_DEFER and prints the error name. It also sets the defer probe reason which can be checked later through debugfs. Signed-off-by: Yang Yingliang <yangyingliang@xxxxxxxxxx> --- drivers/input/misc/gpio-vibra.c | 18 ++++++------------ 1 file changed, 6 insertions(+), 12 deletions(-) diff --git a/drivers/input/misc/gpio-vibra.c b/drivers/input/misc/gpio-vibra.c index f79f75595dd7..94f5b450beae 100644 --- a/drivers/input/misc/gpio-vibra.c +++ b/drivers/input/misc/gpio-vibra.c @@ -114,21 +114,15 @@ static int gpio_vibrator_probe(struct platform_device *pdev) vibrator->vcc = devm_regulator_get(&pdev->dev, "vcc"); err = PTR_ERR_OR_ZERO(vibrator->vcc); - if (err) { - if (err != -EPROBE_DEFER) - dev_err(&pdev->dev, "Failed to request regulator: %d\n", - err); - return err; - } + if (err) + return dev_err_probe(&pdev->dev, err, + "Failed to request regulator\n"); vibrator->gpio = devm_gpiod_get(&pdev->dev, "enable", GPIOD_OUT_LOW); err = PTR_ERR_OR_ZERO(vibrator->gpio); - if (err) { - if (err != -EPROBE_DEFER) - dev_err(&pdev->dev, "Failed to request main gpio: %d\n", - err); - return err; - } + if (err) + return dev_err_probe(&pdev->dev, err, + "Failed to request main gpio\n"); INIT_WORK(&vibrator->play_work, gpio_vibrator_play_work); -- 2.25.1