[lm-sensors] [patch] hwmon: fix unchecked returncodes in w83791d

[jim.cromie@gmail.com (Jim Cromie)]

Fix unchecked return-status by replacing all unchecked calls 
to device_create_file with a single group declaration,
and one call to sysfs_create_group, and check that one return status.

Signed-off-by:  Jim Cromie  <jim.cromie at gmail.com>
---
$ diffstat pc-set/hwmon-unchecked-return-status-fixes-w83791d.patch
 w83791d.c |   83 +++++++++++++++++++++++++++++++++++++++++---------------------
 1 files changed, 55 insertions(+), 28 deletions(-)

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Its impressive (or embarrassing) how much slop you detect.
I trust this comment is in right place for auto-strip to 
keep it out of Changelog.  Is any of this automated, and if so,
are we/I getting it right (or close) ?

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