From: Fabio Estevam Date: Wed, 13 May 2015 18:06:14 +0000 (-0300) Subject: iio: pressure: hid-sensor-press: Fix memory leak in probe() X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=c24e7daf823256c83ce3efe6fa9b9b8ab5b78480;p=openwrt%2Fstaging%2Fblogic.git iio: pressure: hid-sensor-press: 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 Reviewed-by: Srinivas Pandruvada Signed-off-by: Jonathan Cameron --- diff --git a/drivers/iio/pressure/hid-sensor-press.c b/drivers/iio/pressure/hid-sensor-press.c index f3305d80c0b8..c060bd847f54 100644 --- a/drivers/iio/pressure/hid-sensor-press.c +++ b/drivers/iio/pressure/hid-sensor-press.c @@ -262,7 +262,6 @@ static int hid_press_probe(struct platform_device *pdev) struct iio_dev *indio_dev; struct press_state *press_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 press_state)); @@ -282,20 +281,21 @@ static int hid_press_probe(struct platform_device *pdev) return ret; } - channels = kmemdup(press_channels, sizeof(press_channels), GFP_KERNEL); - if (!channels) { + indio_dev->channels = kmemdup(press_channels, sizeof(press_channels), + GFP_KERNEL); + if (!indio_dev->channels) { dev_err(&pdev->dev, "failed to duplicate channels\n"); return -ENOMEM; } - ret = press_parse_report(pdev, hsdev, channels, - HID_USAGE_SENSOR_PRESSURE, press_state); + ret = press_parse_report(pdev, hsdev, + (struct iio_chan_spec *)indio_dev->channels, + HID_USAGE_SENSOR_PRESSURE, press_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(press_channels); indio_dev->dev.parent = &pdev->dev;