linux-kernel - [PATCH] pwm: imx27: Eliminate error message for defer probe

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Date:   Mon, 30 Dec 2019 11:02:40 +0800
From:   Anson Huang <Anson.Huang@....com>
To:     thierry.reding@...il.com, u.kleine-koenig@...gutronix.de,
        shawnguo@...nel.org, s.hauer@...gutronix.de, kernel@...gutronix.de,
        festevam@...il.com, linux-pwm@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc:     Linux-imx@....com
Subject: [PATCH] pwm: imx27: Eliminate error message for defer probe

For defer probe error, no need to output error message which
will cause confusion.

Signed-off-by: Anson Huang <Anson.Huang@....com>
---
 drivers/pwm/pwm-imx27.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/pwm/pwm-imx27.c b/drivers/pwm/pwm-imx27.c
index 59d8b12..35a7ac42 100644
--- a/drivers/pwm/pwm-imx27.c
+++ b/drivers/pwm/pwm-imx27.c
@@ -319,9 +319,13 @@ static int pwm_imx27_probe(struct platform_device *pdev)
 
 	imx->clk_ipg = devm_clk_get(&pdev->dev, "ipg");
 	if (IS_ERR(imx->clk_ipg)) {
-		dev_err(&pdev->dev, "getting ipg clock failed with %ld\n",
-				PTR_ERR(imx->clk_ipg));
-		return PTR_ERR(imx->clk_ipg);
+		int ret = PTR_ERR(imx->clk_ipg);
+
+		if (ret != -EPROBE_DEFER)
+			dev_err(&pdev->dev,
+				"getting ipg clock failed with %d\n",
+				ret);
+		return ret;
 	}
 
 	imx->clk_per = devm_clk_get(&pdev->dev, "per");
-- 
2.7.4