tree 74837f3873a2d34b2d089b13d48dbe2321386312
parent 9052768fe4a4ca773e48654b1dc4297a298e76b9
author Maarten ter Huurne <maarten@treewalker.org> 1456675548 +0100
committer Sebastian Reichel <sre@kernel.org> 1457013908 +0100

jz4740-battery: Correct voltage change check

The check is supposed to avoid redundant update notifications, so it
should check for the difference between old and new voltage exceeding
a threshold.

Also make sure the result of a failed read is never stored.

Signed-off-by: Maarten ter Huurne <maarten@treewalker.org>
Signed-off-by: Sebastian Reichel <sre@kernel.org>