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| author |   Jiang Liu <jiang.liu@linux.intel.com> | 2015-02-02 10:42:54 +0800 |
|---|---|---|
| committer |   Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2015-02-03 22:27:19 +0100 |
| commit | 8515f9368161730655b64ddaf8b11a3d20049610 (patch) | |
| tree | ee4ffd035dfd860964c4adbaaa05d432478b8e4d /drivers/acpi/resource.c | |
| parent | ACPI: Add prefetch decoding to the address space parser (diff) | |
| download | linux-dev-8515f9368161730655b64ddaf8b11a3d20049610.tar.xz linux-dev-8515f9368161730655b64ddaf8b11a3d20049610.zip | |
ACPI: Fix a bug in parsing ACPI Memory24 resource
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>
Diffstat (limited to 'drivers/acpi/resource.c')
| -rw-r--r-- | drivers/acpi/resource.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c index 7ce00a63f695..5544c6d26f32 100644 --- a/drivers/acpi/resource.c +++ b/drivers/acpi/resource.c @@ -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: |