Commit 26242b33 authored Dec 22, 2016 by Thomas Gleixner

bus: arm-ccn: Prevent hotplug callback leak



In case the driver registration fails, the hotplug callback is leaked.

Not fatal, because it's never invoked as there are no instances registered,
but wrong nevertheless.

Fixes: fdc15a36 ("bus/arm-ccn: Convert to hotplug statemachine")
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Suzuki K Poulose <suzuki.poulose@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will.deacon@arm.com>

parent 834fcd29

drivers/bus/arm-ccn.c

+4 −1

Original line number	Diff line number	Diff line
		@@ -1570,7 +1570,10 @@ static int __init arm_ccn_init(void)
		for (i = 0; i < ARRAY_SIZE(arm_ccn_pmu_events); i++)
		arm_ccn_pmu_events_attrs[i] = &arm_ccn_pmu_events[i].attr.attr;

		return platform_driver_register(&arm_ccn_driver);
		ret = platform_driver_register(&arm_ccn_driver);
		if (ret)
		cpuhp_remove_multi_state(CPUHP_AP_PERF_ARM_CCN_ONLINE);
		return ret;
		}

		static void __exit arm_ccn_exit(void)