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ACPI: Fix a bug in parsing ACPI Memory24 resource

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According to ACPI spec 5, section 6.4.3.1 "24-Bit Memory Range Descriptor",
minimum, maximum and address_length field in struct acpi_resource_memory24
is in granularity of 256-bytes. So shift 8-bit left to get correct address.

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Jiang Liu 2015-02-02 10:42:54 +08:00 committed by Rafael J. Wysocki
parent fcb29bbcd5
commit 8515f93681
1 changed files with 2 additions and 2 deletions
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4
drivers/acpi/resource.c
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@ -90,8 +90,8 @@ bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res)
switch (ares->type) {
case ACPI_RESOURCE_TYPE_MEMORY24:
memory24 = &ares->data.memory24;
acpi_dev_get_memresource(res, memory24->minimum,
memory24->address_length,
acpi_dev_get_memresource(res, memory24->minimum << 8,
memory24->address_length << 8,
memory24->write_protect);
break;
case ACPI_RESOURCE_TYPE_MEMORY32: