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

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Message-ID: <20210916153440.15264-1-caihuoqing@baidu.com>
Date:   Thu, 16 Sep 2021 23:34:40 +0800
From:   Cai Huoqing <caihuoqing@...du.com>
To:     <caihuoqing@...du.com>
CC:     Laxman Dewangan <ldewangan@...dia.com>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        <linux-input@...r.kernel.org>, <linux-tegra@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH] Input: tegra-kbc - 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/tegra-kbc.c | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/drivers/input/keyboard/tegra-kbc.c b/drivers/input/keyboard/tegra-kbc.c
index 570fe18c0ce9..7f8958dcc76d 100644
--- a/drivers/input/keyboard/tegra-kbc.c
+++ b/drivers/input/keyboard/tegra-kbc.c
@@ -648,16 +648,14 @@ static int tegra_kbc_probe(struct platform_device *pdev)
 		return PTR_ERR(kbc->mmio);
 
 	kbc->clk = devm_clk_get(&pdev->dev, NULL);
-	if (IS_ERR(kbc->clk)) {
-		dev_err(&pdev->dev, "failed to get keyboard clock\n");
-		return PTR_ERR(kbc->clk);
-	}
+	if (IS_ERR(kbc->clk))
+		return dev_err_probe(&pdev->dev, PTR_ERR(kbc->clk),
+				     "failed to get keyboard clock\n");
 
 	kbc->rst = devm_reset_control_get(&pdev->dev, "kbc");
-	if (IS_ERR(kbc->rst)) {
-		dev_err(&pdev->dev, "failed to get keyboard reset\n");
-		return PTR_ERR(kbc->rst);
-	}
+	if (IS_ERR(kbc->rst))
+		return dev_err_probe(&pdev->dev, PTR_ERR(kbc->rst),
+			       "failed to get keyboard reset\n");
 
 	/*
 	 * The time delay between two consecutive reads of the FIFO is
-- 
2.25.1