Received-SPF: pass (google.com: domain of linux-kernel+bounces-172486-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:40f1:3f00::1 as permitted sender) client-ip=2604:1380:40f1:3f00::1;
From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org,
	stable@vger.kernel.org
Cc: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>,
	Mark Brown <broonie@kernel.org>,
	Sasha Levin <sashal@kernel.org>,
	support.opensource@diasemi.com,
	lgirdwood@gmail.com,
	perex@perex.cz,
	tiwai@suse.com,
	linux-sound@vger.kernel.org
Subject: [PATCH AUTOSEL 5.10 7/9] ASoC: da7219-aad: fix usage of device_get_named_child_node()
Date: Tue,  7 May 2024 19:14:02 -0400
Message-ID: <20240507231406.395123-7-sashal@kernel.org>
In-Reply-To: <20240507231406.395123-1-sashal@kernel.org>
References: <20240507231406.395123-1-sashal@kernel.org>
Precedence: bulk
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit

From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>

[ Upstream commit e8a6a5ad73acbafd98e8fd3f0cbf6e379771bb76 ]

The documentation for device_get_named_child_node() mentions this
important point:

"
The caller is responsible for calling fwnode_handle_put() on the
returned fwnode pointer.
"

Add fwnode_handle_put() to avoid a leaked reference.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20240426153033.38500-1-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/codecs/da7219-aad.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/sound/soc/codecs/da7219-aad.c b/sound/soc/codecs/da7219-aad.c
index b6030709b6b6d..2fb26dd84bc72 100644
--- a/sound/soc/codecs/da7219-aad.c
+++ b/sound/soc/codecs/da7219-aad.c
@@ -629,8 +629,10 @@ static struct da7219_aad_pdata *da7219_aad_fw_to_pdata(struct device *dev)
 		return NULL;
 
 	aad_pdata = devm_kzalloc(dev, sizeof(*aad_pdata), GFP_KERNEL);
-	if (!aad_pdata)
+	if (!aad_pdata) {
+		fwnode_handle_put(aad_np);
 		return NULL;
+	}
 
 	aad_pdata->irq = i2c->irq;
 
@@ -705,6 +707,8 @@ static struct da7219_aad_pdata *da7219_aad_fw_to_pdata(struct device *dev)
 	else
 		aad_pdata->adc_1bit_rpt = DA7219_AAD_ADC_1BIT_RPT_1;
 
+	fwnode_handle_put(aad_np);
+
 	return aad_pdata;
 }
 
-- 
2.43.0