linux-kernel - [PATCH v3 02/27] Input: gpio-vibra

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Message-Id: <20200827185829.30096-3-krzk@kernel.org>
Date:   Thu, 27 Aug 2020 20:58:04 +0200
From:   Krzysztof Kozlowski <krzk@...nel.org>
To:     Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Hans de Goede <hdegoede@...hat.com>,
        Bastien Nocera <hadess@...ess.net>,
        Sangwon Jee <jeesw@...fas.com>,
        Eugen Hristev <eugen.hristev@...rochip.com>,
        Andy Shevchenko <andy.shevchenko@...il.com>,
        linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-input@...r.kernel.org, platform-driver-x86@...r.kernel.org,
        clang-built-linux@...glegroups.com
Cc:     Krzysztof Kozlowski <krzk@...nel.org>
Subject: [PATCH v3 02/27] 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 <krzk@...nel.org>
Reviewed-by: Hans de Goede <hdegoede@...hat.com>

---

Changes since v1:
1. Remove unneeded PTR_ERR_OR_ZERO, as pointed by Andy.
---
 drivers/input/misc/gpio-vibra.c | 20 ++++++--------------
 1 file changed, 6 insertions(+), 14 deletions(-)

diff --git a/drivers/input/misc/gpio-vibra.c b/drivers/input/misc/gpio-vibra.c
index f79f75595dd7..13c69f173620 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);
 
-- 
2.17.1