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mm: use vmalloc_array and vcalloc for array allocations

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Instead of using array_size or just a multiply, use a function that
takes care of both the multiplication and the overflow checks.

Acked-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini
2022-03-08 05:02:21 -05:00
parent a8749a35c3
commit 3000f2e2fc
2 changed files with 2 additions and 4 deletions
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2
mm/percpu-stats.c
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@@ -144,7 +144,7 @@ alloc_buffer:
spin_unlock_irq(&pcpu_lock);
/* there can be at most this many free and allocated fragments */
buffer = vmalloc(array_size(sizeof(int), (2 * max_nr_alloc + 1)));
buffer = vmalloc_array(2 * max_nr_alloc + 1, sizeof(int));
if (!buffer)
return -ENOMEM;