linux-kernel - [PATCH] regulator: anatop: Drop error message for -EPROBE

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Date:   Tue,  3 Mar 2020 11:14:21 +0800
From:   Anson Huang <Anson.Huang@....com>
To:     lgirdwood@...il.com, broonie@...nel.org,
        linux-kernel@...r.kernel.org
Cc:     Linux-imx@....com
Subject: [PATCH] regulator: anatop: Drop error message for -EPROBE_DEFER

devm_regulator_register() could return -EPROBE_DEFER when trying to
get init data and NOT all resources are available at that time, for
this case, error message should NOT be present, the driver will call
probe again later, so drop error message for -EPROBE_DEFER.

Signed-off-by: Anson Huang <Anson.Huang@....com>
---
 drivers/regulator/anatop-regulator.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/regulator/anatop-regulator.c b/drivers/regulator/anatop-regulator.c
index 754739d..41470a8 100644
--- a/drivers/regulator/anatop-regulator.c
+++ b/drivers/regulator/anatop-regulator.c
@@ -305,9 +305,10 @@ static int anatop_regulator_probe(struct platform_device *pdev)
 	/* register regulator */
 	rdev = devm_regulator_register(dev, rdesc, &config);
 	if (IS_ERR(rdev)) {
-		dev_err(dev, "failed to register %s\n",
-			rdesc->name);
-		return PTR_ERR(rdev);
+		ret = PTR_ERR(rdev);
+		if (ret != -EPROBE_DEFER)
+			dev_err(dev, "failed to register %s\n", rdesc->name);
+		return ret;
 	}
 
 	platform_set_drvdata(pdev, rdev);
-- 
2.7.4