commit26242b3300upstream. 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:fdc15a36d8("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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>