drivers/char/hpet.c check

[Tomas Winkler]

In hpet_resources function

Can anybody explain why we check fixmem32 for NULL, looks strange as
it derreferences  a member address

I'm asking since a static analyzer is complaining about it.

       } else if (res->id == ACPI_RSTYPE_FIXED_MEM32) {
              struct acpi_resource_fixed_mem32 *fixmem32;

               fixmem32 = &res->data.fixed_memory32;
               if (!fixmem32)
               ^^^^^^
                       return -EINVAL;

Thanks
Tomas
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