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Wysocki" , Danilo Krummrich , Johan Hovold , Andy Shevchenko Subject: [PATCH v1 1/4] regmap: Switch to use kmemdup_array() Date: Tue, 10 Nov 2026 10:36:59 +0100 Message-ID: <20261110093820.454682-2-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20261110093820.454682-1-andriy.shevchenko@linux.intel.com> References: <20261110093820.454682-1-andriy.shevchenko@linux.intel.com> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Let the kmemdup_array() take care about multiplication and possible overflows. Signed-off-by: Andy Shevchenko --- drivers/base/regmap/regmap.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c index bc4e53ce8ecc..e327850ecc97 100644 --- a/drivers/base/regmap/regmap.c +++ b/drivers/base/regmap/regmap.c @@ -2595,9 +2595,9 @@ static int _regmap_multi_reg_write(struct regmap *map, */ range = _regmap_range_lookup(map, reg); if (range || regs[i].delay_us) { - size_t len = sizeof(struct reg_sequence)*num_regs; - struct reg_sequence *base = kmemdup(regs, len, - GFP_KERNEL); + struct reg_sequence *base; + + base = kmemdup_array(regs, num_regs, sizeof(*regs), GFP_KERNEL); if (!base) return -ENOMEM; ret = _regmap_range_multi_paged_reg_write(map, base, -- 2.50.1