struct acpi_ec		*ec) 
union acpi_ec		*ec) 
acpi_ec_enter_burst_mode (	struct acpi_ec		*ec){	u32			tmp = 0;	int			status = 0;	ACPI_FUNCTION_TRACE("acpi_ec_enter_burst_mode");	status = acpi_ec_read_status(ec);	if (status != -EINVAL &&		!(status & ACPI_EC_FLAG_BURST)){		acpi_hw_low_level_write(8, ACPI_EC_BURST_ENABLE, &ec->command_addr);		status = acpi_ec_wait(ec, ACPI_EC_EVENT_OBF);		if (status){			acpi_enable_gpe(NULL, ec->gpe_bit, ACPI_NOT_ISR);			return_VALUE(-EINVAL);		}		acpi_hw_low_level_read(8, &tmp, &ec->data_addr);		acpi_enable_gpe(NULL, ec->gpe_bit, ACPI_NOT_ISR);		if(tmp != 0x90 ) {/* Burst ACK byte*/			return_VALUE(-EINVAL);		}	}	atomic_set(&ec->leaving_burst , 0);	return_VALUE(0);}
4520	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4520/45bea1555f5bf0cd5871b208b4b02d188f106861/ec.c/buggy/drivers/acpi/ec.c