ACPI, APEI, Fix error return value in apei_map_generic_address()
From commit 6915564d ("ACPI: OSL: Change the type of acpi_os_map_generic_address() return value"), acpi_os_map_generic_address() will return logical address or NULL for error, but for ACPI_ADR_SPACE_SYSTEM_IO case, it should be also return 0 as it's a normal case, but now it will return -ENXIO. So check it out for such case to avoid einj module initialization fail. Fixes: 6915564d ("ACPI: OSL: Change the type of acpi_os_map_generic_address() return value") Cc: <stable@vger.kernel.org> Reviewed-by: NJames Morse <james.morse@arm.com> Tested-by: NTony Luck <tony.luck@intel.com> Signed-off-by: NAili Yao <yaoaili@kingsoft.com> Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
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