on_each_cpu always returns a hard coded return code of zero.

Removing all tests based on this return value saves run time
cycles for compares and code bloat for branches.

Cc: Michal Nazarewicz <redacted>
CC: Will Deacon <redacted>
CC: Peter Zijlstra <redacted>
CC: Paul Mackerras <redacted>
CC: Ingo Molnar <redacted>
CC: Arnaldo Carvalho de Melo <redacted>
CC: Russell King <redacted>
CC: Grant Likely <redacted>
CC: Rob Herring <redacted>
CC: linux-arm-kernel at lists.infradead.org
CC: devicetree-discuss at lists.ozlabs.org
---
 arch/arm/kernel/perf_event.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/arm/kernel/perf_event.c b/arch/arm/kernel/perf_event.c
index 88b0941..bfd58d8 100644
--- a/arch/arm/kernel/perf_event.c
+++ b/arch/arm/kernel/perf_event.c

@@ -617,7 +617,7 @@ static int __init
 cpu_pmu_reset(void)
 {
 	if (cpu_pmu && cpu_pmu->reset)
-		return on_each_cpu(cpu_pmu->reset, NULL, 1);
+		on_each_cpu(cpu_pmu->reset, NULL, 1);
 	return 0;
 }
 arch_initcall(cpu_pmu_reset);