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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux...
[firefly-linux-kernel-4.4.55.git]
/
arch
/
arm
/
kernel
/
perf_event.c
diff --git
a/arch/arm/kernel/perf_event.c
b/arch/arm/kernel/perf_event.c
index 8e9c98edc0682a8aa23790737a3b63b08dea847f..88b0941ce51ec674bbf46d604fcbb46f5dc25255 100644
(file)
--- a/
arch/arm/kernel/perf_event.c
+++ b/
arch/arm/kernel/perf_event.c
@@
-640,6
+640,9
@@
static struct platform_device_id armpmu_plat_device_ids[] = {
static int __devinit armpmu_device_probe(struct platform_device *pdev)
{
+ if (!cpu_pmu)
+ return -ENODEV;
+
cpu_pmu->plat_device = pdev;
return 0;
}