static void attach_one_temp()

in char/bbc_envctrl.c [446:492]

• 33 lines of code
• 3 McCabe index (conditional complexity)

static void attach_one_temp(struct bbc_i2c_bus *bp, struct platform_device *op,
			    int temp_idx)
{
	struct bbc_cpu_temperature *tp;

	tp = kzalloc(sizeof(*tp), GFP_KERNEL);
	if (!tp)
		return;

	INIT_LIST_HEAD(&tp->bp_list);
	INIT_LIST_HEAD(&tp->glob_list);

	tp->client = bbc_i2c_attach(bp, op);
	if (!tp->client) {
		kfree(tp);
		return;
	}


	tp->index = temp_idx;

	list_add(&tp->glob_list, &all_temps);
	list_add(&tp->bp_list, &bp->temps);

	/* Tell it to convert once every 5 seconds, clear all cfg
	 * bits.
	 */
	bbc_i2c_writeb(tp->client, 0x00, MAX1617_WR_CFG_BYTE);
	bbc_i2c_writeb(tp->client, 0x02, MAX1617_WR_CVRATE_BYTE);

	/* Program the hard temperature limits into the chip. */
	bbc_i2c_writeb(tp->client, amb_temp_limits[tp->index].high_pwroff,
		       MAX1617_WR_AMB_HIGHLIM);
	bbc_i2c_writeb(tp->client, amb_temp_limits[tp->index].low_pwroff,
		       MAX1617_WR_AMB_LOWLIM);
	bbc_i2c_writeb(tp->client, cpu_temp_limits[tp->index].high_pwroff,
		       MAX1617_WR_CPU_HIGHLIM);
	bbc_i2c_writeb(tp->client, cpu_temp_limits[tp->index].low_pwroff,
		       MAX1617_WR_CPU_LOWLIM);

	get_current_temps(tp);
	tp->prev_cpu_temp = tp->avg_cpu_temp = tp->curr_cpu_temp;
	tp->prev_amb_temp = tp->avg_amb_temp = tp->curr_amb_temp;

	tp->fan_todo[FAN_AMBIENT] = FAN_SAME;
	tp->fan_todo[FAN_CPU] = FAN_SAME;
}