From: John Stultz <john.stultz@linaro.org>
Date: Sat, 14 Dec 2013 03:26:18 +0000 (-0800)
Subject: ion: Fix two small issues in system_heap allocation
X-Git-Tag: v3.14-rc1~150^2~379
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ea725ec8b1d2a5f6a46dd45174fcd6a5f8c9dd5b;p=pandora-kernel.git

ion: Fix two small issues in system_heap allocation

In testing ion system heap allocations, I ran across two issues:

1) Not k*z*allocing the sg table. This can cause trouble if
we end up trying call sg_alloc_table() with too many entries,
then sg_alloc_table() internally fails and tries to free what it
thinks is internal table structure, which causes bad pointer
traversals.

2) The second list_for_each_entry probably should be _safe,
since I was seeing  strange lock warnings and oopses on occasion.
This seems to resolve it, but could use some extra checking.

Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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