From 7ea2aa2046a15af1c048115e7c05f1ba1566899d Mon Sep 17 00:00:00 2001
From: Wolfram Sang <w.sang@pengutronix.de>
Date: Fri, 14 Oct 2011 15:32:00 +0200
Subject: [PATCH] gpio: pca953x: propagate the errno from the chip_init
 functions

Initializing the chips may return with an error, but this error gets
dropped in probe(). Propagate this further to the driver core. Also,
simplify returning the error in one of the init functions.

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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