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(parent: 4078977) | patch
clockevents: Set noop handler in clockevents_exchange_device()
authorThomas Gleixner <tglx@linutronix.de>
Fri, 2 Dec 2011 15:02:45 +0000 (16:02 +0100)
committerGreg Kroah-Hartman <gregkh@suse.de>
Fri, 9 Dec 2011 16:52:53 +0000 (08:52 -0800)
commitb01b383bbd04e9dcf7d9fe6ca3751b77ccdc533c
tree011972826f7b83c5aafece5ef589e93a4d011508tree | snapshot
parent4078977c46f627f553ed2d8ea047b9bf25dee48dcommit | diff
clockevents: Set noop handler in clockevents_exchange_device()

commit de28f25e8244c7353abed8de0c7792f5f883588c upstream.

If a device is shutdown, then there might be a pending interrupt,
which will be processed after we reenable interrupts, which causes the
original handler to be run. If the old handler is the (broadcast)
periodic handler the shutdown state might hang the kernel completely.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
kernel/time/clockevents.c diff | blob | history
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