From: Grant Likely <grant.likely@linaro.org>
Date: Wed, 19 Nov 2014 16:22:32 +0000 (+0000)
Subject: of/selftest: Fix off-by-one error in removal path
X-Git-Tag: omap-for-v3.19/fixes-for-merge-window~87^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c1a2086e2d;p=pandora-kernel.git

of/selftest: Fix off-by-one error in removal path

The removal path for selftest data has an off by one error that causes
the code to dereference beyond the end of the nodes[] array on the first
pass through. The old code only worked by chance on a lot of platforms,
but the bug was recently exposed on aarch64.

The fix is simple. Decrement the node count before dereferencing, not
after.

Reported-by: Kevin Hilman <khilman@linaro.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Gaurav Minocha <gaurav.minocha.os@gmail.com>
Cc: <stable@vger.kernel.org> # v3.17+
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