From: Samuel Liao <samuelliao@tencent.com>
Date: Tue, 5 Jun 2012 05:14:59 +0000 (+0800)
Subject: perf annotate: Check null of sym pointer before using it
X-Git-Tag: v3.6-rc1~167^2~23^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c0a58fb2bdf033df433cad9009c7dac4c6b872b0;p=pandora-kernel.git

perf annotate: Check null of sym pointer before using it

Sym may be NULL, and that will cause perf to crash.

Signed-off-by: Shan Wei <davidshan@tencent.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/4FCD95D3.90209@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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