From: Peter Zijlstra <a.p.zijlstra@chello.nl>
Date: Fri, 10 Sep 2010 15:38:06 +0000 (+0200)
Subject: perf: Fix perf_init_event()
X-Git-Tag: v2.6.37-rc1~214^2~63
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e5f4d3394a52ac351f1a479fe136d92fa5228eff;p=pandora-kernel.git

perf: Fix perf_init_event()

We ought to return -ENOENT when non of the registered PMUs
recognise the requested event.

This fixes a boot crash that occurs if no PMU is available
but the NMI watchdog tries to register an event.

Reported-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

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