Commit f7a6c149 authored by Mark Salter's avatar Mark Salter Committed by Will Deacon

arm: pmu: Fix non-devicetree probing

There is a problem in the non-devicetree PMU probing where some
probe functions may get the number of supported events through
smp_call_function_any() using the arm_pmu supported_cpus mask.
But at the time the probe function is called, the supported_cpus
mask is empty so the call fails. This patch makes sure the mask
is set before calling the init function rather than after.
Signed-off-by: default avatarMark Salter <msalter@redhat.com>
Signed-off-by: default avatarJeremy Linton <jeremy.linton@arm.com>
Signed-off-by: default avatarWill Deacon <will.deacon@arm.com>
parent bbb1681e
...@@ -1010,8 +1010,8 @@ int arm_pmu_device_probe(struct platform_device *pdev, ...@@ -1010,8 +1010,8 @@ int arm_pmu_device_probe(struct platform_device *pdev,
if (!ret) if (!ret)
ret = init_fn(pmu); ret = init_fn(pmu);
} else { } else {
ret = probe_current_pmu(pmu, probe_table);
cpumask_setall(&pmu->supported_cpus); cpumask_setall(&pmu->supported_cpus);
ret = probe_current_pmu(pmu, probe_table);
} }
if (ret) { if (ret) {
......
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