linux-kernel - [PATCH v1 28/28] leds: sgm3140: Put fwnode in any case during ->probe()

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Date:   Mon, 10 May 2021 12:50:45 +0300
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Pavel Machek <pavel@....cz>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Amireddy Mallikarjuna reddy 
        <mallikarjunax.reddy@...ux.intel.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Marek Behún <marek.behun@....cz>,
        Abanoub Sameh <abanoubsameh8@...il.com>,
        Dan Murphy <dmurphy@...com>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        linux-leds@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Andy Shevchenko <andy.shevchenko@...il.com>,
        Luca Weiss <luca@...tu.xyz>
Subject: [PATCH v1 28/28] leds: sgm3140: Put fwnode in any case during ->probe()

fwnode_get_next_child_node() bumps a reference counting of a returned variable.
We have to balance it whenever we return to the caller.

Fixes: cef8ec8cbd21 ("leds: add sgm3140 driver")
Cc: Luca Weiss <luca@...tu.xyz>
Signed-off-by: Andy Shevchenko <andy.shevchenko@...il.com>
---
 drivers/leds/leds-sgm3140.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/leds/leds-sgm3140.c b/drivers/leds/leds-sgm3140.c
index f4f831570f11..df9402071695 100644
--- a/drivers/leds/leds-sgm3140.c
+++ b/drivers/leds/leds-sgm3140.c
@@ -266,12 +266,8 @@ static int sgm3140_probe(struct platform_device *pdev)
 					   child_node,
 					   fled_cdev, NULL,
 					   &v4l2_sd_cfg);
-	if (IS_ERR(priv->v4l2_flash)) {
-		ret = PTR_ERR(priv->v4l2_flash);
-		goto err;
-	}
-
-	return ret;
+	fwnode_handle_put(child_node);
+	return PTR_ERR_OR_ZERO(priv->v4l2_flash);
 
 err:
 	fwnode_handle_put(child_node);
-- 
2.31.1