diff options
| author | Qianfeng Rong <rongqianfeng@vivo.com> | 2025-08-19 20:50:17 +0800 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2025-08-25 10:41:51 +0100 |
| commit | ccef0530e60dc59b36cac1cae2d9a7d7f86ca99f (patch) | |
| tree | eb9e4dec644fb9d926e7e5f5eb8d9c10e1a798e8 /drivers/iio/common | |
| parent | a4ee7e220c1a83e18ac32e5a3a70461e1accd652 (diff) | |
iio: common: scmi_iio: use kcalloc() instead of kzalloc()
Replace calls of devm_kzalloc() with devm_kcalloc() in scmi_alloc_iiodev()
and scmi_iio_set_sampling_freq_avail() for safer memory allocation with
built-in overflow protection.
Similarly, use array_size() instead of explicit multiplication for
'sensor->sensor_info->intervals.count * 2'.
Signed-off-by: Qianfeng Rong <rongqianfeng@vivo.com>
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Link: https://patch.msgid.link/20250819125017.635182-1-rongqianfeng@vivo.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers/iio/common')
| -rw-r--r-- | drivers/iio/common/scmi_sensors/scmi_iio.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/iio/common/scmi_sensors/scmi_iio.c b/drivers/iio/common/scmi_sensors/scmi_iio.c index da516c46e057..39c61c47022a 100644 --- a/drivers/iio/common/scmi_sensors/scmi_iio.c +++ b/drivers/iio/common/scmi_sensors/scmi_iio.c @@ -521,9 +521,9 @@ static int scmi_iio_set_sampling_freq_avail(struct iio_dev *iio_dev) int i; sensor->freq_avail = - devm_kzalloc(&iio_dev->dev, - sizeof(*sensor->freq_avail) * - (sensor->sensor_info->intervals.count * 2), + devm_kcalloc(&iio_dev->dev, + array_size(sensor->sensor_info->intervals.count, 2), + sizeof(*sensor->freq_avail), GFP_KERNEL); if (!sensor->freq_avail) return -ENOMEM; @@ -597,8 +597,8 @@ scmi_alloc_iiodev(struct scmi_device *sdev, iiodev->info = &scmi_iio_info; iio_channels = - devm_kzalloc(dev, - sizeof(*iio_channels) * (iiodev->num_channels), + devm_kcalloc(dev, iiodev->num_channels, + sizeof(*iio_channels), GFP_KERNEL); if (!iio_channels) return ERR_PTR(-ENOMEM); |