linux-kernel - [PATCH] Input: drv2665 - Make use of the helper function dev_err

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Message-ID: <20210916153211.14204-1-caihuoqing@baidu.com>
Date:   Thu, 16 Sep 2021 23:32:10 +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: drv2665 - 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/drv2665.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/input/misc/drv2665.c b/drivers/input/misc/drv2665.c
index 21913e8085d7..5f66cfdd9908 100644
--- a/drivers/input/misc/drv2665.c
+++ b/drivers/input/misc/drv2665.c
@@ -167,12 +167,9 @@ static int drv2665_probe(struct i2c_client *client,
 		return -ENOMEM;
 
 	haptics->regulator = devm_regulator_get(&client->dev, "vbat");
-	if (IS_ERR(haptics->regulator)) {
-		error = PTR_ERR(haptics->regulator);
-		dev_err(&client->dev,
-			"unable to get regulator, error: %d\n", error);
-		return error;
-	}
+	if (IS_ERR(haptics->regulator))
+		return dev_err_probe(&client->dev, PTR_ERR(haptics->regulator),
+				     "unable to get regulator\n");
 
 	haptics->input_dev = devm_input_allocate_device(&client->dev);
 	if (!haptics->input_dev) {
-- 
2.25.1