Thread (28 messages) 28 messages, 3 authors, 2023-07-07
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[PATCH v4 03/24] Input: pwm-vibra - Simplify with dev_err_probe()

From: Krzysztof Kozlowski <hidden>
Date: 2023-06-25 16:28:39
Also in: lkml, platform-driver-x86
Subsystem: input (keyboard, mouse, joystick, touchscreen) drivers, the rest · Maintainers: Dmitry Torokhov, Linus Torvalds

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 <redacted>
Reviewed-by: Hans de Goede <redacted>
Reviewed-by: Andy Shevchenko <redacted>
---

Changes since v3:
1. Rebase, adjust to new driver changes.

Changes since v1:
1. Remove unneeded PTR_ERR_OR_ZERO, as pointed by Andy.
---
 drivers/input/misc/pwm-vibra.c | 30 +++++++++---------------------
 1 file changed, 9 insertions(+), 21 deletions(-)
diff --git a/drivers/input/misc/pwm-vibra.c b/drivers/input/misc/pwm-vibra.c
index 2ba035299db8..a3cde30ee8d2 100644
--- a/drivers/input/misc/pwm-vibra.c
+++ b/drivers/input/misc/pwm-vibra.c
@@ -140,32 +140,20 @@ static int pwm_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->enable_gpio = devm_gpiod_get_optional(&pdev->dev, "enable",
 							GPIOD_OUT_LOW);
-	err = PTR_ERR_OR_ZERO(vibrator->enable_gpio);
-	if (err) {
-		if (err != -EPROBE_DEFER)
-			dev_err(&pdev->dev, "Failed to request enable gpio: %d\n",
-				err);
-		return err;
-	}
+	if (IS_ERR(vibrator->enable_gpio))
+		return dev_err_probe(&pdev->dev, PTR_ERR(vibrator->enable_gpio),
+				     "Failed to request enable gpio\n");
 
 	vibrator->pwm = devm_pwm_get(&pdev->dev, "enable");
-	err = PTR_ERR_OR_ZERO(vibrator->pwm);
-	if (err) {
-		if (err != -EPROBE_DEFER)
-			dev_err(&pdev->dev, "Failed to request main pwm: %d\n",
-				err);
-		return err;
-	}
+	if (IS_ERR(vibrator->pwm))
+		return dev_err_probe(&pdev->dev, PTR_ERR(vibrator->pwm),
+				     "Failed to request main pwm\n");
 
 	INIT_WORK(&vibrator->play_work, pwm_vibrator_play_work);
 
-- 
2.34.1
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