From: Yegor Yefremov <yegor_sub1@visionsystems.de>
Date: Thu, 30 Sep 2010 12:14:22 +0000 (+0200)
Subject: i2c-pca: Fix waitforcompletion() return value
X-Git-Tag: v2.6.36-rc8~33^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6abb930af064fb1cf4177d32e2c7bfb89eee0fe5;p=pandora-kernel.git

i2c-pca: Fix waitforcompletion() return value

ret is still -1, if during the polling read_byte() returns at once
with I2C_PCA_CON_SI set. So ret > 0 would lead *_waitforcompletion()
to return 0, in spite of the proper behavior.

The routine was rewritten, so that ret has always a proper value,
before returning.

Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
Reviewed-by: Wolfram Sang <w.sang@pengutronix.de>
Cc: stable@kernel.org
Signed-off-by: Jean Delvare <khali@linux-fr.org>
---

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