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Ard Biesheuvel authored
Memory regions passed to early_init_dt_add_memory_arch() are rounded to PAGE_SIZE by subtracting the size of the leading fractional page from the 'size' argument. However, size being a u64 type, if its value is sufficiently small, the subtraction wraps around and produces a bogus value, potentially leading to crashes. Fix this by ignoring the memory range in such cases. Signed-off-by:
Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by:
Grant Likely <grant.likely@linaro.org>
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