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From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org, Thierry Reding <treding@nvidia.com>,
        Guenter Roeck <linux@roeck-us.net>,
        Sasha Levin <sashal@kernel.org>
Subject: [PATCH 4.9 216/222] hwmon: (pwm-fan) Silence error on probe deferral
Date:   Fri, 22 Nov 2019 11:29:16 +0100
Message-Id: <20191122100918.107448103@linuxfoundation.org>
In-Reply-To: <20191122100830.874290814@linuxfoundation.org>
References: <20191122100830.874290814@linuxfoundation.org>
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From: Thierry Reding <treding@nvidia.com>

[ Upstream commit 9f67f7583e77fe5dc57aab3a6159c2642544eaad ]

Probe deferrals aren't actual errors, so silence the error message in
case the PWM cannot yet be acquired.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/hwmon/pwm-fan.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/hwmon/pwm-fan.c b/drivers/hwmon/pwm-fan.c
index fb03449de2e07..aa6333620c37d 100644
--- a/drivers/hwmon/pwm-fan.c
+++ b/drivers/hwmon/pwm-fan.c
@@ -231,8 +231,12 @@ static int pwm_fan_probe(struct platform_device *pdev)
 
 	ctx->pwm = devm_of_pwm_get(&pdev->dev, pdev->dev.of_node, NULL);
 	if (IS_ERR(ctx->pwm)) {
-		dev_err(&pdev->dev, "Could not get PWM\n");
-		return PTR_ERR(ctx->pwm);
+		ret = PTR_ERR(ctx->pwm);
+
+		if (ret != -EPROBE_DEFER)
+			dev_err(&pdev->dev, "Could not get PWM: %d\n", ret);
+
+		return ret;
 	}
 
 	platform_set_drvdata(pdev, ctx);
-- 
2.20.1