commit 15d1ad0cc9d2d3f549afddbcdbc9c3637f0d1331
author Nikolaus Schulz <mail@microschulz.de> Tue Feb 28 16:15:54 2012 -0500
committer Guenter Roeck <guenter.roeck@ericsson.com> Fri Mar 02 12:02:23 2012 -0800
tree ba695785e271b487c591b86c518f32449258497a
parent b17d6561acc16265b65b1e0d27b649829b61a7e3

hwmon: (f75375s) Catch some attempts to write to r/o registers

It makes no sense to attempt to manually configure the fan in auto mode,
or set the duty cycle directly in closed loop mode.  The corresponding
registers are then read-only.  If the user tries it nonetheless, error out
with EINVAL instead of silently doing nothing.

Signed-off-by: Nikolaus Schulz <mail@microschulz.de>
[guenter.roeck@ericsson.com: Minor formatting cleanup]
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>