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Commit 16071a07 authored by Len Brown's avatar Len Brown
Browse files

Pull 5452 into release branch

parents b7639daf cd8e2b48

drivers/acpi/processor_core.c

+15 −0
Original line number Diff line number Diff line
@@ -543,6 +543,8 @@ static int acpi_processor_get_info(struct acpi_processor *pr) 
	return_VALUE(0);

}



static void *processor_device_array[NR_CPUS];



static int acpi_processor_start(struct acpi_device *device)

{

	int result = 0;
@@ -561,6 +563,19 @@ static int acpi_processor_start(struct acpi_device *device) 


	BUG_ON((pr->id >= NR_CPUS) || (pr->id < 0));



	/*

	 * Buggy BIOS check

	 * ACPI id of processors can be reported wrongly by the BIOS.

	 * Don't trust it blindly

	 */

	if (processor_device_array[pr->id] != NULL &&

	    processor_device_array[pr->id] != (void *)device) {

		ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "BIOS reporting wrong ACPI id"

			"for the processor\n"));

		return_VALUE(-ENODEV);

	}

	processor_device_array[pr->id] = (void *)device;



	processors[pr->id] = pr;



	result = acpi_processor_add_fs(device);