linux-kernel - [PATCH v4] pwm: rockchip: Convert to use dev_err

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Message-Id: <20220819092627.19416-1-zhaoxiao@uniontech.com>
Date:   Fri, 19 Aug 2022 17:26:27 +0800
From:   zhaoxiao <zhaoxiao@...ontech.com>
To:     thierry.reding@...il.com, heiko@...ech.de
Cc:     u.kleine-koenig@...gutronix.de, linux-pwm@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org,
        zhaoxiao <zhaoxiao@...ontech.com>
Subject: [PATCH v4] pwm: rockchip: Convert to use dev_err_probe()

It's fine to call dev_err_probe() in ->probe() when error code is known.
Convert the driver to use dev_err_probe().

Signed-off-by: zhaoxiao <zhaoxiao@...ontech.com>
---
 v4: add the missing dev_err function.
 drivers/pwm/pwm-rockchip.c | 18 ++++++------------
 1 file changed, 6 insertions(+), 12 deletions(-)

diff --git a/drivers/pwm/pwm-rockchip.c b/drivers/pwm/pwm-rockchip.c
index f3647b317152..e6ee14c6a159 100644
--- a/drivers/pwm/pwm-rockchip.c
+++ b/drivers/pwm/pwm-rockchip.c
@@ -328,22 +328,16 @@ static int rockchip_pwm_probe(struct platform_device *pdev)
 	else
 		pc->pclk = pc->clk;
 
-	if (IS_ERR(pc->pclk)) {
-		ret = PTR_ERR(pc->pclk);
-		if (ret != -EPROBE_DEFER)
-			dev_err(&pdev->dev, "Can't get APB clk: %d\n", ret);
-		return ret;
-	}
+	if (IS_ERR(pc->pclk))
+		return dev_err_probe(&pdev->dev, PTR_ERR(pc->pclk), "Can't get APB clk\n");
 
 	ret = clk_prepare_enable(pc->clk);
-	if (ret) {
-		dev_err(&pdev->dev, "Can't prepare enable PWM clk: %d\n", ret);
-		return ret;
-	}
+	if (ret)
+		return dev_err_probe(&pdev->dev, ret, "Can't prepare enable PWM clk\n");
 
 	ret = clk_prepare_enable(pc->pclk);
 	if (ret) {
-		dev_err(&pdev->dev, "Can't prepare enable APB clk: %d\n", ret);
+		dev_err_probe(&pdev->dev, ret, "Can't prepare enable APB clk: %d\n", ret);
 		goto err_clk;
 	}
 
@@ -360,7 +354,7 @@ static int rockchip_pwm_probe(struct platform_device *pdev)
 
 	ret = pwmchip_add(&pc->chip);
 	if (ret < 0) {
-		dev_err(&pdev->dev, "pwmchip_add() failed: %d\n", ret);
+		dev_err_probe(&pdev->dev, ret, "pwmchip_add() failed: %d\n", ret);
 		goto err_pclk;
 	}
 
-- 
2.20.1