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arm64: check return value of of_flat_dt_get_machine_name

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It's useless to print machine name and setup arch-specific system
identifiers if of_flat_dt_get_machine_name() return NULL, especially
when ACPI-based boot.

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
This commit is contained in:
Kefeng Wang 2017-05-16 15:36:16 +08:00 • committed by Will Deacon
parent 3fde2999fa
commit 690e95dd4d
1 changed files with 3 additions and 0 deletions
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3
arch/arm64/kernel/setup.c
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@ -194,6 +194,9 @@ static void __init setup_machine_fdt(phys_addr_t dt_phys)
}
name = of_flat_dt_get_machine_name();
if (!name)
return;
pr_info("Machine model: %s\n", name);
dump_stack_set_arch_desc("%s (DT)", name);
}