linux-kernel - [PATCH 5.19 0963/1157] leds: pwm-multicolor: Dont show -EPROBE

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Message-Id: <20220815180518.176425275@linuxfoundation.org>
Date:   Mon, 15 Aug 2022 20:05:19 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Emil Renner Berthing <emil.renner.berthing@...onical.com>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Pavel Machek <pavel@....cz>, Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.19 0963/1157] leds: pwm-multicolor: Dont show -EPROBE_DEFER as errors

From: Emil Renner Berthing <emil.renner.berthing@...onical.com>

[ Upstream commit 399e7aa82105ea46d8998fa535b047541c48030f ]

When requesting a PWM it might return -EPROBE_DEFER if it hasn't probed
yet. This is not an error, so just propagate the -EPROBE_DEFER without
logging anything. There is already dev_err_probe for exactly this
situation.

Fixes: 9fa2762110dd ("leds: Add PWM multicolor driver")
Signed-off-by: Emil Renner Berthing <emil.renner.berthing@...onical.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@...der.be>
Signed-off-by: Pavel Machek <pavel@....cz>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/leds/rgb/leds-pwm-multicolor.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/leds/rgb/leds-pwm-multicolor.c b/drivers/leds/rgb/leds-pwm-multicolor.c
index 45e38708ecb1..eb67b89d28e9 100644
--- a/drivers/leds/rgb/leds-pwm-multicolor.c
+++ b/drivers/leds/rgb/leds-pwm-multicolor.c
@@ -72,8 +72,7 @@ static int iterate_subleds(struct device *dev, struct pwm_mc_led *priv,
 		pwmled = &priv->leds[priv->mc_cdev.num_colors];
 		pwmled->pwm = devm_fwnode_pwm_get(dev, fwnode, NULL);
 		if (IS_ERR(pwmled->pwm)) {
-			ret = PTR_ERR(pwmled->pwm);
-			dev_err(dev, "unable to request PWM: %d\n", ret);
+			ret = dev_err_probe(dev, PTR_ERR(pwmled->pwm), "unable to request PWM\n");
 			goto release_fwnode;
 		}
 		pwm_init_state(pwmled->pwm, &pwmled->state);
-- 
2.35.1