Commit 5a0821e0 authored by Andy Shevchenko's avatar Andy Shevchenko Committed by Jonathan Cameron
Browse files

iio: core: Switch to krealloc_array() 



Let the krealloc_array() copy the original data and
check for a multiplication overflow.

Signed-off-by: default avatarAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: default avatarNuno Sa <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20230724110204.46285-4-andriy.shevchenko@linux.intel.com


Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
parent 971ddd4b

drivers/iio/industrialio-core.c

+1 −1
Original line number Diff line number Diff line
@@ -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;