perf, x86: Report error code that returned from x86_pmu.hw_config()
If x86_pmu.hw_config() fails a fixed error code (-EOPNOTSUPP) is returned even if a different error was reported. This patch fixes this. Signed-off-by: NRobert Richter <robert.richter@amd.com> Acked-by: NCyrill Gorcunov <gorcunov@gmail.com> Acked-by: NLin Ming <ming.m.lin@intel.com> Cc: acme@redhat.com Cc: eranian@google.com Cc: gorcunov@openvz.org Cc: peterz@infradead.org Cc: fweisbec@gmail.com LKML-Reference: <20100316160733.GR1585@erda.amd.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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