Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit a9ca142c authored by Fabio Estevam's avatar Fabio Estevam Committed by Sasha Levin
Browse files

iio: light: hid-sensor-als.c: Fix memory leak in probe() 



[ Upstream commit 9ecdbed7903921f29adae63a3155814b453e7186 ]

'channels' is allocated via kmemdup and it is never freed in the
subsequent error paths.

Use 'indio_dev->channels' directly instead, so that we avoid such
memory leak problem.

Signed-off-by: default avatarFabio Estevam <fabio.estevam@freescale.com>
Reviewed-by: default avatarSrinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: default avatarJonathan Cameron <jic23@kernel.org>
Signed-off-by: default avatarSasha Levin <sasha.levin@oracle.com>
parent 8d31c41e

drivers/iio/light/hid-sensor-als.c

+6 −6
Original line number Diff line number Diff line
@@ -270,7 +270,6 @@ static int hid_als_probe(struct platform_device *pdev) 
	struct iio_dev *indio_dev;

	struct als_state *als_state;

	struct hid_sensor_hub_device *hsdev = pdev->dev.platform_data;

	struct iio_chan_spec *channels;



	indio_dev = devm_iio_device_alloc(&pdev->dev, sizeof(struct als_state));

	if (!indio_dev)
@@ -288,20 +287,21 @@ static int hid_als_probe(struct platform_device *pdev) 
		return ret;

	}



	channels = kmemdup(als_channels, sizeof(als_channels), GFP_KERNEL);

	if (!channels) {

	indio_dev->channels = kmemdup(als_channels,

				      sizeof(als_channels), GFP_KERNEL);

	if (!indio_dev->channels) {

		dev_err(&pdev->dev, "failed to duplicate channels\n");

		return -ENOMEM;

	}



	ret = als_parse_report(pdev, hsdev, channels,

	ret = als_parse_report(pdev, hsdev,

			       (struct iio_chan_spec *)indio_dev->channels,

			       HID_USAGE_SENSOR_ALS, als_state);

	if (ret) {

		dev_err(&pdev->dev, "failed to setup attributes\n");

		goto error_free_dev_mem;

	}



	indio_dev->channels = channels;

	indio_dev->num_channels =

				ARRAY_SIZE(als_channels);

	indio_dev->dev.parent = &pdev->dev;