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arm64: perf: Remove unnecessary printk 

ARM64 pmu prints an error message in event_init() when
no hardware PMU is available. This is pretty annoying as
it keeps printing the message for every single trial, flooding
the kernel logs, unnecessarily. The return code is sufficient for
the user to figure out the reason.

Signed-off-by: Suzuki K. Poulose <suzuki.poulose@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
This commit is contained in:
Suzuki K. Poulose 2015-06-12 15:39:28 +01:00 committed by Will Deacon
parent cbfe8fa6cd
commit 2d23ed04de
1 changed files with 1 additions and 3 deletions
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4
arch/arm64/kernel/perf_event.c
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@ -435,10 +435,8 @@ armpmu_reserve_hardware(struct arm_pmu *armpmu)
unsigned int i, irqs;
struct platform_device *pmu_device = armpmu->plat_device;
if (!pmu_device) {
pr_err("no PMU device registered\n");
if (!pmu_device)
return -ENODEV;
}
irqs = min(pmu_device->num_resources, num_possible_cpus());
if (!irqs) {