ibmpex's temperature sensors report incorrect units.  Apply a conversion
factor so that tempertures report correctly.  Until now, no systems seemed to
report temperatures this way, but evidently QS2x blades do.
Signed-off-by: NDarrick J. Wong <djwong@us.ibm.com>
Cc: "Mark M. Hoffman" <mhoffman@lightlink.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

The QS2x blades ships with v2.54 of the firmware, which use the same
multiplier for all power meters.
Signed-off-by: NDarrick J. Wong <djwong@us.ibm.com>
Cc: Mark M. Hoffman <mhoffman@lightlink.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Clean up printk use in ibmpex.
Signed-off-by: NDarrick J. Wong <djwong@us.ibm.com>
Acked-by: NJean Delvare <khali@linux-fr.org>
Signed-off-by: NMark M. Hoffman <mhoffman@lightlink.com>

Don't dereference "data" when we know for sure it's NULL.

Spotted by the Coverity checker.
Signed-off-by: NAdrian Bunk <bunk@kernel.org>
Signed-off-by: NMark M. Hoffman <mhoffman@lightlink.com>

Roel Kluin <12o3l@tiscali.nl> found a minor defect in the init code if
hwmon device registration fails.
Signed-off-by: NDarrick J. Wong <djwong@us.ibm.com>
Signed-off-by: NMark M. Hoffman <mhoffman@lightlink.com>

Add a driver to export IBM PowerExecutive power meter sensors.
Signed-off-by: NDarrick J. Wong <djwong@us.ibm.com>
Signed-off-by: NMark M. Hoffman <mhoffman@lightlink.com>