Merge tag 'iio-fixes-4.19a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus

Jonathan writes:

First set of IIO fixes for the 4.19 cycle.

* ad9523
  - sysfs write should return the number of characters used or an error, not
    0 which could result in an infinite loop in userspace.
* lsm6dsx
  - Fix computation of length when updating the watermark to include
    timestamps avoiding the watermark being set earlier than intended.
* maxim_thermocouple
  - Revert a patch adding the max31856 as it's not actually compatible with
    the register set that this driver supports.
* si1133
  - Fix an impossible value check so we don't always error out whether the
    passed in value is good or bad.

drivers/iio/temperature/maxim_thermocouple.c

@@ -258,7 +258,6 @@ static int maxim_thermocouple_remove(struct spi_device *spi)
 static const struct spi_device_id maxim_thermocouple_id[] = {
 	{"max6675", MAX6675},
 	{"max31855", MAX31855},
-	{"max31856", MAX31855},
 	{},
 };
 MODULE_DEVICE_TABLE(spi, maxim_thermocouple_id);