Merge tag 'iio-fixes-for-3.8b' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus

Jonathan writes:

Second round of fixes for IIO post 3.8-rc1

Two tiny fixes
* A build warning fix due to signed / unsigned comparison
* Missing sign extension in adis16080

drivers/staging/iio/adc/mxs-lradc.c

···
 	struct mxs_lradc *lradc = iio_priv(iio);
 	const uint32_t chan_value = LRADC_CH_ACCUMULATE |
 		((LRADC_DELAY_TIMER_LOOP - 1) << LRADC_CH_NUM_SAMPLES_OFFSET);
-	int i, j = 0;
+	unsigned int i, j = 0;
 
 	for_each_set_bit(i, iio->active_scan_mask, iio->masklength) {
 		lradc->buffer[j] = readl(lradc->base + LRADC_CH(j));

drivers/staging/iio/gyro/adis16080_core.c

···
 	ret = spi_read(st->us, st->buf, 2);
 
 	if (ret == 0)
-		*val = ((st->buf[0] & 0xF) << 8) | st->buf[1];
+		*val = sign_extend32(((st->buf[0] & 0xF) << 8) | st->buf[1], 11);
 	mutex_unlock(&st->buf_lock);
 
 	return ret;