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x86/efi: Use kmalloc_array() in efi_call_phys_prolog()
* A multiplication for the size determination of a memory allocation indicated that an array data structure should be processed. Thus reuse the corresponding function "kmalloc_array". This issue was detected by using the Coccinelle software. * Replace the specification of a data type by a pointer dereference to make the corresponding size determination a bit safer according to the Linux coding style convention. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Julia Lawall <julia.lawall@lip6.fr> Signed-off-by: Matt Fleming <matt@codeblueprint.co.uk>
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@ -85,7 +85,7 @@ pgd_t * __init efi_call_phys_prolog(void)
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early_code_mapping_set_exec(1);
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n_pgds = DIV_ROUND_UP((max_pfn << PAGE_SHIFT), PGDIR_SIZE);
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save_pgd = kmalloc(n_pgds * sizeof(pgd_t), GFP_KERNEL);
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save_pgd = kmalloc_array(n_pgds, sizeof(*save_pgd), GFP_KERNEL);
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for (pgd = 0; pgd < n_pgds; pgd++) {
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save_pgd[pgd] = *pgd_offset_k(pgd * PGDIR_SIZE);
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