perf: arm_cspmu: Reject events meant for other PMUs

commit 15c7ef7 upstream.

Coresight PMU driver didn't reject events meant for other PMUs.
This caused some of the Core PMU events disappearing from
the output of "perf list". In addition, trying to run e.g.

     $ perf stat -e r2 sleep 1

made Coresight PMU driver to handle the event instead of letting
Core PMU driver to deal with it.

Cc: [email protected]
Fixes: e37dfd6 ("perf: arm_cspmu: Add support for ARM CoreSight PMU driver")
Signed-off-by: Ilkka Koskinen <[email protected]>
Acked-by: Will Deacon <[email protected]>
Reviewed-by: Besar Wicaksono <[email protected]>
Acked-by: Mark Rutland <[email protected]>
Reviewed-by: Anshuman Khandual <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Catalin Marinas <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

drivers/perf/arm_cspmu/arm_cspmu.c

@@ -635,6 +635,9 @@ static int arm_cspmu_event_init(struct perf_event *event)
 
 	cspmu = to_arm_cspmu(event->pmu);
 
+	if (event->attr.type != event->pmu->type)
+		return -ENOENT;
+
 	/*
 	 * Following other "uncore" PMUs, we do not support sampling mode or
 	 * attach to a task (per-process mode).