From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
To: linux-sound@vger.kernel.org
Cc: alsa-devel@alsa-project.org, tiwai@suse.de, broonie@kernel.org,
Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Subject: [PATCH] ASoC: da7219-aad: fix usage of device_get_named_child_node()
Date: Fri, 26 Apr 2024 10:30:33 -0500 [thread overview]
Message-ID: <20240426153033.38500-1-pierre-louis.bossart@linux.intel.com> (raw)
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>
---
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 6bc068cdcbe2..15e5e3eb592b 100644
--- a/sound/soc/codecs/da7219-aad.c
+++ b/sound/soc/codecs/da7219-aad.c
@@ -671,8 +671,10 @@ 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;
@@ -753,6 +755,8 @@ 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;
}
--
2.40.1
next reply other threads:[~2024-04-26 15:35 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-26 15:30 Pierre-Louis Bossart [this message]
2024-04-30 14:31 ` [PATCH] ASoC: da7219-aad: fix usage of device_get_named_child_node() Mark Brown
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