From: Jiang Liu <jiang.liu@linux.intel.com> Date: Mon, 2 Feb 2015 02:42:54 +0000 (+0800) Subject: ACPI: Fix a bug in parsing ACPI Memory24 resource X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=8515f9368161730655b64ddaf8b11a3d20049610;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git 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> --- 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: