linux-kernel - [PATCH] Input: max77693-haptic - Make use of the helper function dev_err

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Message-ID: <20210916153319.14681-1-caihuoqing@baidu.com>
Date:   Thu, 16 Sep 2021 23:33:18 +0800
From:   Cai Huoqing <caihuoqing@...du.com>
To:     <caihuoqing@...du.com>
CC:     Dmitry Torokhov <dmitry.torokhov@...il.com>,
        <linux-input@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH] Input: max77693-haptic - Make use of the helper function dev_err_probe()

When possible use dev_err_probe help to properly deal with the
PROBE_DEFER error, the benefit is that DEFER issue will be logged
in the devices_deferred debugfs file.
Using dev_err_probe() can reduce code size, and the error value
gets printed.

Signed-off-by: Cai Huoqing <caihuoqing@...du.com>
---
 drivers/input/misc/max77693-haptic.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/input/misc/max77693-haptic.c b/drivers/input/misc/max77693-haptic.c
index 0d09ffeafeea..e6edf3c96984 100644
--- a/drivers/input/misc/max77693-haptic.c
+++ b/drivers/input/misc/max77693-haptic.c
@@ -337,10 +337,9 @@ static int max77693_haptic_probe(struct platform_device *pdev)
 	pwm_apply_args(haptic->pwm_dev);
 
 	haptic->motor_reg = devm_regulator_get(&pdev->dev, "haptic");
-	if (IS_ERR(haptic->motor_reg)) {
-		dev_err(&pdev->dev, "failed to get regulator\n");
-		return PTR_ERR(haptic->motor_reg);
-	}
+	if (IS_ERR(haptic->motor_reg))
+		return dev_err_probe(&pdev->dev, PTR_ERR(haptic->motor_reg),
+				     "failed to get regulator\n");
 
 	/* Initialize input device for haptic device */
 	haptic->input_dev = devm_input_allocate_device(&pdev->dev);
-- 
2.25.1