[PATCH 4.7 141/143] hwmon: (iio_hwmon) fix memory leak in name attribute
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: 2016-09-05 16:58:11
Also in:
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4.7-stable review patch. If anyone has any objections, please let me know.
------------------
From: Quentin Schulz <redacted>
commit 5d17d3b4bbf3becb89fd48b74340a50a39736f6d upstream.
The "name" variable's memory is now freed when the device is destructed
thanks to devm function.
Signed-off-by: Quentin Schulz <redacted>
Reported-by: Guenter Roeck <linux@roeck-us.net>
Fixes: e0f8a24e0edfd ("staging:iio::hwmon interface client driver.")
Fixes: 61bb53bcbdd86 ("hwmon: (iio_hwmon) Add support for humidity sensors")
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/hwmon/iio_hwmon.c | 24 ++++++++++++------------
1 file changed, 12 insertions(+), 12 deletions(-)
--- a/drivers/hwmon/iio_hwmon.c
+++ b/drivers/hwmon/iio_hwmon.c@@ -110,24 +110,24 @@ static int iio_hwmon_probe(struct platfo switch (type) { case IIO_VOLTAGE: - a->dev_attr.attr.name = kasprintf(GFP_KERNEL, - "in%d_input", - in_i++); + a->dev_attr.attr.name = devm_kasprintf(dev, GFP_KERNEL, + "in%d_input", + in_i++); break; case IIO_TEMP: - a->dev_attr.attr.name = kasprintf(GFP_KERNEL, - "temp%d_input", - temp_i++); + a->dev_attr.attr.name = devm_kasprintf(dev, GFP_KERNEL, + "temp%d_input", + temp_i++); break; case IIO_CURRENT: - a->dev_attr.attr.name = kasprintf(GFP_KERNEL, - "curr%d_input", - curr_i++); + a->dev_attr.attr.name = devm_kasprintf(dev, GFP_KERNEL, + "curr%d_input", + curr_i++); break; case IIO_HUMIDITYRELATIVE: - a->dev_attr.attr.name = kasprintf(GFP_KERNEL, - "humidity%d_input", - humidity_i++); + a->dev_attr.attr.name = devm_kasprintf(dev, GFP_KERNEL, + "humidity%d_input", + humidity_i++); break; default: ret = -EINVAL;