Commit 54f6e4ae authored Sep 21, 2016 by Patrick Fay

perf: Enable updating exclude_idle events at idle



Commit 573979de ("perf: Add support for exclude_idle attribute")
does a register_idle_notifier call so that exclude_idle events
are updated when a CPU goes idle. This commit fixes a bug which
causes unregister_idle_notifier to be erroneously called.

Change-Id: I13dbd369c0ce137e884c156360c514df92746e39
Signed-off-by: Patrick Fay <pfay@codeaurora.org>

parent 9e2d528d

arch/arm64/kernel/perf_event.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -683,7 +683,7 @@ int armv8pmu_probe_num_events(struct arm_pmu *arm_pmu)
		ret = smp_call_function_any(&arm_pmu->supported_cpus,
		armv8pmu_read_num_pmnc_events,
		&arm_pmu->num_events, 1);
		if (!ret)
		if (ret)
		idle_notifier_unregister(&pmu_idle_nb->perf_cpu_idle_nb);
		return ret;