From: Grant Likely <grant.likely@linaro.org>
Date: Fri, 4 Oct 2013 16:24:26 +0000 (+0100)
Subject: of: Fix iteration bug over CPU reg properties
X-Git-Tag: omap-for-v3.13/fixes-for-merge-window-take2~9^2~4^2~16
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f3cea45a77c8ebdb7efad100e576eb6cb401bf25;p=pandora-kernel.git

of: Fix iteration bug over CPU reg properties

The size of each hwid in a cpu nodes 'reg' property is defined by the
parents #address-cells property in the normal way. The cpu parsing code
has a bug where it will overrun the end of the property if
address-cells is greater than one. This commit fixes the problem by
adjusting the array size by the number of address cells. It also makes
sure address-cells isn't zero for that would cause an infinite loop.

v2: bail if #address-cells is zero instead of forcing to
    OF_ROOT_NODE_ADDR_CELLS_DEFAULT. Forcing it will cause the reg
    property to be parsed incorrectly.

Signed-off-by: Grant Likely <grant.likely@linaro.org>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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