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iio: orientation: hid-sensor-incl-3d: Fix memory leak in probe() 

'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: Fabio Estevam <fabio.estevam@freescale.com>
Reviewed-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Fabio Estevam 2015-05-13 15:06:12 -03:00 committed by Jonathan Cameron
parent 9ecdbed790
commit 32ee56e306
1 changed files with 7 additions and 7 deletions
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14
drivers/iio/orientation/hid-sensor-incl-3d.c
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@ -315,7 +315,6 @@ static int hid_incl_3d_probe(struct platform_device *pdev)
struct iio_dev *indio_dev;
struct incl_3d_state *incl_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 incl_3d_state));
@ -336,21 +335,22 @@ static int hid_incl_3d_probe(struct platform_device *pdev)
return ret;
}
channels = kmemdup(incl_3d_channels, sizeof(incl_3d_channels),
GFP_KERNEL);
if (!channels) {
indio_dev->channels = kmemdup(incl_3d_channels,
sizeof(incl_3d_channels), GFP_KERNEL);
if (!indio_dev->channels) {
dev_err(&pdev->dev, "failed to duplicate channels\n");
return -ENOMEM;
}
ret = incl_3d_parse_report(pdev, hsdev, channels,
HID_USAGE_SENSOR_INCLINOMETER_3D, incl_state);
ret = incl_3d_parse_report(pdev, hsdev,
(struct iio_chan_spec *)indio_dev->channels,
HID_USAGE_SENSOR_INCLINOMETER_3D,
incl_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(incl_3d_channels);
indio_dev->dev.parent = &pdev->dev;
indio_dev->info = &incl_3d_info;