[PATCH v1 1/1] ACPI/IORT: Switch to use kmemdup_array()

[Andy Shevchenko]

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

Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
---
 drivers/acpi/arm64/iort.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/acpi/arm64/iort.c b/drivers/acpi/arm64/iort.c
index c0b1c2c19444..e596dff20f1e 100644
--- a/drivers/acpi/arm64/iort.c
+++ b/drivers/acpi/arm64/iort.c
@@ -822,7 +822,7 @@ static struct iommu_iort_rmr_data *iort_rmr_alloc(
 		return NULL;
 
 	/* Create a copy of SIDs array to associate with this rmr_data */
-	sids_copy = kmemdup(sids, num_sids * sizeof(*sids), GFP_KERNEL);
+	sids_copy = kmemdup_array(sids, num_sids, sizeof(*sids), GFP_KERNEL);
 	if (!sids_copy) {
 		kfree(rmr_data);
 		return NULL;
-- 
2.43.0.rc1.1336.g36b5255a03ac