patch "iio: adc: aspeed: Fix refcount leak in aspeed_adc_set_trim_data" added to char-misc-linus

patch "iio: adc: aspeed: Fix refcount leak in aspeed_adc_set_trim_data" added to char-misc-linus

[gregkh]

This is a note to let you know that I've just added the patch titled

    iio: adc: aspeed: Fix refcount leak in aspeed_adc_set_trim_data

to my char-misc git tree which can be found at
    git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git
in the char-misc-linus branch.

The patch will show up in the next release of the linux-next tree
(usually sometime within the next 24 hours during the week.)

The patch will hopefully also be merged in Linus's tree for the
next -rc kernel release.

If you have any questions about this process, please let me know.


From 8a2b6b5687984a010ed094b4f436a2f091987758 Mon Sep 17 00:00:00 2001
From: Miaoqian Lin <linmq006@gmail.com>
Date: Mon, 16 May 2022 11:52:02 +0400
Subject: iio: adc: aspeed: Fix refcount leak in aspeed_adc_set_trim_data

of_find_node_by_name() returns a node pointer with refcount
incremented, we should use of_node_put() on it when done.
Add missing of_node_put() to avoid refcount leak.

Fixes: d0a4c17b4073 ("iio: adc: aspeed: Get and set trimming data.")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Link: https://lore.kernel.org/r/20220516075206.34580-1-linmq006@gmail.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.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;
-- 
2.36.1