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ACPI: EC: Use proper handle for boot EC 

Fall back to ACPI_ROOT_HANDLE only in case of error.

ACPI: EC: EC description table is found, configuring boot EC
ACPI Error (evregion-0316): No handler for Region [ECOR] (ffff81007a651620) [EmbeddedControl] [20070126]
ACPI Error (exfldio-0289): Region EmbeddedControl(3) has no handler [20070126]

http://bugzilla.kernel.org/show_bug.cgi?id=9916

Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Alexey Starikovskiy 2008-02-14 15:58:47 -05:00 committed by Len Brown
parent e760e716d4
commit 208c70a456
1 changed files with 5 additions and 1 deletions
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6
drivers/acpi/ec.c
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@ -943,7 +943,11 @@ int __init acpi_ec_ecdt_probe(void)
boot_ec->command_addr = ecdt_ptr->control.address;
boot_ec->data_addr = ecdt_ptr->data.address;
boot_ec->gpe = ecdt_ptr->gpe;
boot_ec->handle = ACPI_ROOT_OBJECT;
if (ACPI_FAILURE(acpi_get_handle(NULL, ecdt_ptr->id,
&boot_ec->handle))) {
pr_info("Failed to locate handle for boot EC\n");
boot_ec->handle = ACPI_ROOT_OBJECT;
}
} else {
/* This workaround is needed only on some broken machines,
* which require early EC, but fail to provide ECDT */