From: Steven Rostedt <srostedt@redhat.com>
Date: Fri, 28 Jan 2011 04:14:25 +0000 (-0500)
Subject: tracing/filter: Check the created pred tree
X-Git-Tag: v2.6.39-rc1~510^2~39^2~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ec126cac23945de12eb2d103374e1f7ee97c5595;p=pandora-kernel.git

tracing/filter: Check the created pred tree

Since the filter walks a tree to determine if a match is made or not,
if the tree was incorrectly created, it could cause an infinite loop.

Add a check to walk the entire tree before assigning it as a filter
to make sure the tree is correct.

Cc: Tom Zanussi <tzanussi@gmail.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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