tree 0a2d4c292731e64ac425c6289bb957cae81fb15d
parent 9cd892bcbe32fed1b78fe1b742d887ed2be1791d
author Bartosz Golaszewski <bgolaszewski@baylibre.com> 1417082346 +0100
committer Guenter Roeck <linux@roeck-us.net> 1417407194 -0800

hwmon: (ina2xx) bail-out from ina2xx_probe() in case of configuration errors

The return value of i2c_smbus_write_word_swapped() isn't checked in
ina2xx_probe(). This leads to devices being registered even if they cannot
be physically detected (e.g. device is not powered-up at boot-time).

Even after restoring power to such device, it is left unconfigured as the
configuration has never been actually written to the register.

Error out in case of write errors in probe and notify the user.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
[Guenter Roeck: Fixed multi-line comment style]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>