From: Anton Vorontsov <avorontsov@ru.mvista.com>
Date: Wed, 2 Dec 2009 21:24:51 +0000 (+0300)
Subject: power_supply_sysfs: Handle -ENODATA in a special way
X-Git-Tag: Release-2010-05/1~2^2~27
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8adb667caa0f12fe89d911ca85e81f2162d691ba;p=pandora-kernel.git

power_supply_sysfs: Handle -ENODATA in a special way

There are cases when some device can not report any meaningful value,
e.g. TWL4030 charger can report voltage only when charging is
active.

In these cases drivers will return -ENODATA, and we shouldn't flood
kernel log with error messages.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
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