linux-kernel - [PATCH] Input: lpc32xx-keys - Make use of the helper function dev_err

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Message-ID: <20210916153311.14628-1-caihuoqing@baidu.com>
Date:   Thu, 16 Sep 2021 23:33:10 +0800
From:   Cai Huoqing <caihuoqing@...du.com>
To:     <caihuoqing@...du.com>
CC:     Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Vladimir Zapolskiy <vz@...ia.com>,
        <linux-input@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH] Input: lpc32xx-keys - 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/keyboard/lpc32xx-keys.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/input/keyboard/lpc32xx-keys.c b/drivers/input/keyboard/lpc32xx-keys.c
index 943aeeb0de79..12bdf68b8fe7 100644
--- a/drivers/input/keyboard/lpc32xx-keys.c
+++ b/drivers/input/keyboard/lpc32xx-keys.c
@@ -227,10 +227,9 @@ static int lpc32xx_kscan_probe(struct platform_device *pdev)
 
 	/* Get the key scanner clock */
 	kscandat->clk = devm_clk_get(&pdev->dev, NULL);
-	if (IS_ERR(kscandat->clk)) {
-		dev_err(&pdev->dev, "failed to get clock\n");
-		return PTR_ERR(kscandat->clk);
-	}
+	if (IS_ERR(kscandat->clk))
+		return dev_err_probe(&pdev->dev, PTR_ERR(kscandat->clk),
+				     "failed to get clock\n");
 
 	/* Configure the key scanner */
 	error = clk_prepare_enable(kscandat->clk);
-- 
2.25.1