hwmon: convert idr to ida and use ida_simple interface
hwmon: convert idr to ida and use ida_simple interface

hwmon was using an idr with a NULL pointer, so convert to an
ida which then allows use of Rusty's ida_simple_get.

Signed-off-by: Jonathan Cameron <09f65b71b7655725897b2fd41a09a0cefe2e1ace@cam.ac.uk>
Cc: Rusty Russell <df9728c9e5104131c08c7adb03af425394842596@rustcorp.com.au>
Cc: Tejun Heo <546b05909706652891a87f7bfe385ae147f61f91@kernel.org>
Acked-by: Guenter Roeck <32ce62c5480002985aec58d7044038218061ef55@ericsson.com>
Cc: James Bottomley <407b36959ca09543ccda8f8e06721c791bc53435@HansenPartnership.com>
Cc: David Airlie <f2295d84e358395675bc8031be58672073ae065e@linux.ie>
Cc: Thomas Hellstrom <a26490dfbee4be3d38287ad6448444504f58193c@vmware.com>
Cc: Evgeniy Polyakov <9be07b15919dab1b45f07f962d8e37ba7c50f920@ioremap.net>
Cc: Darrick J. Wong <7c104a478e7216c2bda2eb33e60eb18553b226b4@us.ibm.com>
Signed-off-by: Andrew Morton <5c1e68b099950c134891f0b6e179498a8ebe9cf9@linux-foundation.org>
Signed-off-by: Linus Torvalds <69652caca27c8b940640ad396ab71f93cacec34f@linux-foundation.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs