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authorWill Deacon <will.deacon@arm.com>2012-09-21 14:14:17 +0100
committerWill Deacon <will.deacon@arm.com>2012-11-09 11:37:26 +0000
commit288700d16d4c1479aa00e3db13caed8bb7c83e9f (patch)
tree542c0de2197ec348de013d32329d03bb8f81f844 /arch/arm/kernel/perf_event_cpu.c
parent2a4961ba89ffae388a553175db51dd58ce7c39a8 (diff)
ARM: perf: return NOTIFY_DONE from cpu notifier when no available PMU
When attempting to reset the PMU state for either a NULL PMU or a PMU implementation without a reset function, return NOTIFY_DONE from the CPU notifier as we don't care about the hotplug event. Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'arch/arm/kernel/perf_event_cpu.c')
-rw-r--r--arch/arm/kernel/perf_event_cpu.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm/kernel/perf_event_cpu.c b/arch/arm/kernel/perf_event_cpu.c
index 71c824ce020..db9c6b530f3 100644
--- a/arch/arm/kernel/perf_event_cpu.c
+++ b/arch/arm/kernel/perf_event_cpu.c
@@ -165,6 +165,8 @@ static int __cpuinit cpu_pmu_notify(struct notifier_block *b,
if (cpu_pmu && cpu_pmu->reset)
cpu_pmu->reset(cpu_pmu);
+ else
+ return NOTIFY_DONE;
return NOTIFY_OK;
}