From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Date: Thu, 1 Aug 2013 12:10:46 +0000 (+0200)
Subject: i2c: add sanity check to i2c_put_adapter
X-Git-Tag: v3.12-rc1~140^2~47
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c66c4cc087eb1f5307f6391e467797227aed758a;p=pandora-kernel.git

i2c: add sanity check to i2c_put_adapter

i2c_put_adapter dereferences i2c_adapter pointer passed without check
for NULL. This adds a check for non-NULL pointer to allow i2c_put_adapter
called with NULL and behave the same way i2c_release_client does already.
It allows to simplify drivers where you need to release the adapter
during probe failures.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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