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ACPI/IORT: Switch to use kmemdup_array()

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

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Hanjun Guo <guohanjun@huawei.com>
Link: https://lore.kernel.org/r/20240606165005.3031490-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
Andy Shevchenko 2024-06-06 19:50:05 +03:00 committed by Will Deacon
parent 7c626ce4ba
commit 9cd8062b38
1 changed files with 1 additions and 1 deletions
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2
drivers/acpi/arm64/iort.c
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@ -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;