2023-06-25 16:30:37

by Krzysztof Kozlowski

Subject: [PATCH v4 02/24] Input: gpio-vibra - Simplify with dev_err_probe()

Common pattern of handling deferred probe can be simplified with
dev_err_probe(). Less code and also it prints the error value.

Signed-off-by: Krzysztof Kozlowski <[email protected]>
Reviewed-by: Hans de Goede <[email protected]>
Reviewed-by: Andy Shevchenko <[email protected]>
---

Changes since v1:
1. Remove unneeded PTR_ERR_OR_ZERO, as pointed by Andy.
---
drivers/input/misc/gpio-vibra.c | 20 ++++++--------------
drivers/input/misc/pwm-beeper.c | 19 +++++--------------
2 files changed, 11 insertions(+), 28 deletions(-)

diff --git a/drivers/input/misc/gpio-vibra.c b/drivers/input/misc/gpio-vibra.c
index 134a1309ba92..c1c3ba5960dd 100644
--- a/drivers/input/misc/gpio-vibra.c
+++ b/drivers/input/misc/gpio-vibra.c
@@ -113,22 +113,14 @@ static int gpio_vibrator_probe(struct platform_device *pdev)
return -ENOMEM;

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 (IS_ERR(vibrator->vcc))
+ return dev_err_probe(&pdev->dev, PTR_ERR(vibrator->vcc),
+ "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 (IS_ERR(vibrator->gpio))
+ return dev_err_probe(&pdev->dev, PTR_ERR(vibrator->gpio),
+ "Failed to request main gpio\n");

INIT_WORK(&vibrator->play_work, gpio_vibrator_play_work);

diff --git a/drivers/input/misc/pwm-beeper.c b/drivers/input/misc/pwm-beeper.c
index 3cf1812384e6..1e731d8397c6 100644
--- a/drivers/input/misc/pwm-beeper.c
+++ b/drivers/input/misc/pwm-beeper.c
@@ -132,13 +132,8 @@ static int pwm_beeper_probe(struct platform_device *pdev)
return -ENOMEM;

beeper->pwm = devm_pwm_get(dev, NULL);
- if (IS_ERR(beeper->pwm)) {
- error = PTR_ERR(beeper->pwm);
- if (error != -EPROBE_DEFER)
- dev_err(dev, "Failed to request PWM device: %d\n",
- error);
- return error;
- }
+ if (IS_ERR(beeper->pwm))
+ return dev_err_probe(dev, PTR_ERR(beeper->pwm), "Failed to request PWM device\n");

/* Sync up PWM state and ensure it is off. */
pwm_init_state(beeper->pwm, &state);
@@ -151,13 +146,9 @@ static int pwm_beeper_probe(struct platform_device *pdev)
}

beeper->amplifier = devm_regulator_get(dev, "amp");
- if (IS_ERR(beeper->amplifier)) {
- error = PTR_ERR(beeper->amplifier);
- if (error != -EPROBE_DEFER)
- dev_err(dev, "Failed to get 'amp' regulator: %d\n",
- error);
- return error;
- }
+ if (IS_ERR(beeper->amplifier))
+ return dev_err_probe(dev, PTR_ERR(beeper->amplifier),
+ "Failed to get 'amp' regulator\n");

INIT_WORK(&beeper->work, pwm_beeper_work);

--
2.34.1

2023-06-26 07:47:27

by Linus Walleij

Subject: Re: [PATCH v4 02/24] Input: gpio-vibra - Simplify with dev_err_probe()

On Sun, Jun 25, 2023 at 6:28 PM Krzysztof Kozlowski
<[email protected]> wrote:

> Common pattern of handling deferred probe can be simplified with
> dev_err_probe(). Less code and also it prints the error value.
>
> Signed-off-by: Krzysztof Kozlowski <[email protected]>
> Reviewed-by: Hans de Goede <[email protected]>
> Reviewed-by: Andy Shevchenko <[email protected]>

Reviewed-by: Linus Walleij <[email protected]>

Yours,
Linus Walleij