From: Liang He <windhl@126.com>
To: jic23@kernel.org, lars@metafoo.de, joel@jms.id.au,
andrew@aj.id.au, p.zabel@pengutronix.de, lgirdwood@gmail.com,
broonie@kernel.org, billy_tsai@aspeedtech.com,
colin.king@intel.com
Cc: windhl@126.com, linux-iio@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-aspeed@lists.ozlabs.org, linux-kernel@vger.kernel.org
Subject: [PATCH] iio: adc: Fix refcount leak bug in aspeed_adc
Date: Fri, 17 Jun 2022 22:41:06 +0800 [thread overview]
Message-ID: <20220617144106.4050677-1-windhl@126.com> (raw)
In aspeed_adc_set_trim_data(), of_find_node_by_name() will return
a node pointer with refcount incremented. We should use of_node_put()
when it is not used anymore.
Signed-off-by: Liang He <windhl@126.com>
---
drivers/iio/adc/aspeed_adc.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/iio/adc/aspeed_adc.c b/drivers/iio/adc/aspeed_adc.c
index 0793d2474cdc..9341e0e0eb55 100644
--- a/drivers/iio/adc/aspeed_adc.c
+++ b/drivers/iio/adc/aspeed_adc.c
@@ -186,6 +186,7 @@ static int aspeed_adc_set_trim_data(struct iio_dev *indio_dev)
return -EOPNOTSUPP;
}
scu = syscon_node_to_regmap(syscon);
+ of_node_put(syscon);
if (IS_ERR(scu)) {
dev_warn(data->dev, "Failed to get syscon regmap\n");
return -EOPNOTSUPP;
--
2.25.1
reply other threads:[~2022-06-17 15:14 UTC|newest]
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