linux-kernel - [PATCH 4/4] mfd: exynos-lpass: Fix another error handling path in exynos_lpass

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Message-ID: <d224865a16b50498279b044a819e1e187d01bb28.1743231856.git.christophe.jaillet@wanadoo.fr>
Date: Sat, 29 Mar 2025 08:45:48 +0100
From: Christophe JAILLET <christophe.jaillet@...adoo.fr>
To: lee@...nel.org,
	krzk@...nel.org,
	alim.akhtar@...sung.com,
	s.nawrocki@...sung.com,
	beomho.seo@...sung.com,
	ideal.song@...sung.com
Cc: linux-arm-kernel@...ts.infradead.org,
	linux-samsung-soc@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	kernel-janitors@...r.kernel.org,
	Christophe JAILLET <christophe.jaillet@...adoo.fr>
Subject: [PATCH 4/4] mfd: exynos-lpass: Fix another error handling path in exynos_lpass_probe()

If devm_of_platform_populate() fails, some clean-up needs to be done, as
already done in the remove function.

Add the needed error handling path.

Fixes: c695abab2429 ("mfd: Add Samsung Exynos Low Power Audio Subsystem driver")
Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
---
Compile tested only.
---
 drivers/mfd/exynos-lpass.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/drivers/mfd/exynos-lpass.c b/drivers/mfd/exynos-lpass.c
index 7fd8585ba35a..9f2601e4e583 100644
--- a/drivers/mfd/exynos-lpass.c
+++ b/drivers/mfd/exynos-lpass.c
@@ -118,6 +118,7 @@ static int exynos_lpass_probe(struct platform_device *pdev)
 	struct device *dev = &pdev->dev;
 	struct exynos_lpass *lpass;
 	void __iomem *base_top;
+	int ret;
 
 	lpass = devm_kzalloc(dev, sizeof(*lpass), GFP_KERNEL);
 	if (!lpass)
@@ -143,7 +144,15 @@ static int exynos_lpass_probe(struct platform_device *pdev)
 	pm_runtime_enable(dev);
 	exynos_lpass_enable(lpass);
 
-	return devm_of_platform_populate(dev);
+	ret = devm_of_platform_populate(dev);
+	if (ret)
+		goto err_remove_exynos_lpass;
+
+	return 0;
+
+err_remove_exynos_lpass:
+	exynos_lpass_remove(pdev);
+	return ret;
 }
 
 static int __maybe_unused exynos_lpass_suspend(struct device *dev)
-- 
2.49.0