Let the krealloc_array() copy the original data and check for a multiplication overflow. Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> Reviewed-by: Nuno Sa <nuno.sa@xxxxxxxxxx> --- drivers/iio/industrialio-core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c index 118ca6b59504..13d6b6ac5ccf 100644 --- a/drivers/iio/industrialio-core.c +++ b/drivers/iio/industrialio-core.c @@ -1474,7 +1474,7 @@ int iio_device_register_sysfs_group(struct iio_dev *indio_dev, const struct attribute_group **new, **old = iio_dev_opaque->groups; unsigned int cnt = iio_dev_opaque->groupcounter; - new = krealloc(old, sizeof(*new) * (cnt + 2), GFP_KERNEL); + new = krealloc_array(old, cnt + 2, sizeof(*new), GFP_KERNEL); if (!new) return -ENOMEM; -- 2.40.0.1.gaa8946217a0b
