Unverified Commit f755d695 authored by Andy Shevchenko's avatar Andy Shevchenko Committed by Mark Brown
Browse files

regmap: cache: Switch to use kmemdup_array() 



Let the kememdup_array() take care about multiplication and possible
overflows.

Signed-off-by: default avatarAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20240606164717.3031107-4-andriy.shevchenko@linux.intel.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 354662dc

drivers/base/regmap/regcache.c

+2 −2
Original line number Diff line number Diff line
@@ -170,8 +170,8 @@ int regcache_init(struct regmap *map, const struct regmap_config *config) 
	 * a copy of it.

	 */

	if (config->reg_defaults) {

		tmp_buf = kmemdup(config->reg_defaults, map->num_reg_defaults *

				  sizeof(struct reg_default), GFP_KERNEL);

		tmp_buf = kmemdup_array(config->reg_defaults, map->num_reg_defaults,

					sizeof(*map->reg_defaults), GFP_KERNEL);

		if (!tmp_buf)

			return -ENOMEM;

		map->reg_defaults = tmp_buf;