power_supply: max77693: Properly handle error conditions

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Re-work and fix handling of errors when retrieving power supply
properties:

1. Return errno values directly from get_property() instead of storing
   'unknown' as intval for given property.

2. Handle regmap_read() errors when getting 'online' and 'present'
   proprties and return errno code. Previously the regmap_read() return
   code was ignored so an uninitialized value from the stack could be
   used for calculating the property.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>

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Krzysztof Kozlowski 2015-02-24 10:54:43 +01:00 • committed by Sebastian Reichel

parent 213feb51e5

commit 1ed522b390

1 changed files with 55 additions and 44 deletions

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drivers/power/max77693_charger.c

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