diff options
| author | Fabio Estevam <fabio.estevam@freescale.com> | 2015-05-13 21:06:13 +0300 |
|---|---|---|
| committer | Jonathan Cameron <jic23@kernel.org> | 2015-05-17 11:10:25 +0300 |
| commit | 2bd04628435ff57a2fefa71e7d3e5c005db5c978 (patch) | |
| tree | 3876a2f8d0b69cde24a89ee673b6def7a5ff58e2 /drivers/iio/orientation | |
| parent | 32ee56e306b09568619466efe109ab9722e89245 (diff) | |
| download | linux-2bd04628435ff57a2fefa71e7d3e5c005db5c978.tar.xz | |
iio: orientation: hid-sensor-rotation: 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>
Diffstat (limited to 'drivers/iio/orientation')
| -rw-r--r-- | drivers/iio/orientation/hid-sensor-rotation.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/drivers/iio/orientation/hid-sensor-rotation.c b/drivers/iio/orientation/hid-sensor-rotation.c index 603fe1419581..b98b9d94d184 100644 --- a/drivers/iio/orientation/hid-sensor-rotation.c +++ b/drivers/iio/orientation/hid-sensor-rotation.c @@ -222,7 +222,6 @@ static int hid_dev_rot_probe(struct platform_device *pdev) struct iio_dev *indio_dev; struct dev_rot_state *rot_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 dev_rot_state)); @@ -243,21 +242,23 @@ static int hid_dev_rot_probe(struct platform_device *pdev) return ret; } - channels = devm_kmemdup(&pdev->dev, dev_rot_channels, - sizeof(dev_rot_channels), GFP_KERNEL); - if (!channels) { + indio_dev->channels = devm_kmemdup(&pdev->dev, dev_rot_channels, + sizeof(dev_rot_channels), + GFP_KERNEL); + if (!indio_dev->channels) { dev_err(&pdev->dev, "failed to duplicate channels\n"); return -ENOMEM; } - ret = dev_rot_parse_report(pdev, hsdev, channels, - HID_USAGE_SENSOR_DEVICE_ORIENTATION, rot_state); + ret = dev_rot_parse_report(pdev, hsdev, + (struct iio_chan_spec *)indio_dev->channels, + HID_USAGE_SENSOR_DEVICE_ORIENTATION, + rot_state); if (ret) { dev_err(&pdev->dev, "failed to setup attributes\n"); return ret; } - indio_dev->channels = channels; indio_dev->num_channels = ARRAY_SIZE(dev_rot_channels); indio_dev->dev.parent = &pdev->dev; indio_dev->info = &dev_rot_info; |