tree 25bfaf2ab49a7b5284dd0bb04f5d6b100fe65282
parent 357b9dc6c2dbb01e835415355b70d6b47c43a102
author Nat Gurumoorthy <natg@google.com> 1306349013 +0200
committer Jean Delvare <khali@endymion.delvare> 1306349013 +0200

hwmon: (it87) Use request_muxed_region

Serialize access to the hardware by using "request_muxed_region" macro
defined by Alan Cox. Call to this macro will hold off the requestor if
the resource is currently busy. "superio_enter" will return an error
if call to "request_muxed_region" fails. Rest of the code change is to
ripple an error return from superio_enter to the top level.

Signed-off-by: Nat Gurumoorthy <natg@google.com>
Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>