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Commit 984763cb authored by Robert Richter's avatar Robert Richter Committed by Ingo Molnar
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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: default avatarRobert Richter <robert.richter@amd.com>
Acked-by: default avatarCyrill Gorcunov <gorcunov@gmail.com>
Acked-by: default avatarLin 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: default avatarIngo Molnar <mingo@elte.hu>
parent 5cc718b9
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+3 −2
Original line number Diff line number Diff line
@@ -472,8 +472,9 @@ static int __hw_perf_event_init(struct perf_event *event)
	hwc->last_tag = ~0ULL;

	/* Processor specifics */
	if (x86_pmu.hw_config(attr, hwc))
		return -EOPNOTSUPP;
	err = x86_pmu.hw_config(attr, hwc);
	if (err)
		return err;

	if (!hwc->sample_period) {
		hwc->sample_period = x86_pmu.max_period;