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clockevents: Set noop handler in clockevents_exchange_device()
authorThomas Gleixner <tglx@linutronix.de>
Fri, 2 Dec 2011 15:02:45 +0000 (16:02 +0100)
committerMaxim Uvarov <maxim.uvarov@oracle.com>
Fri, 16 Dec 2011 01:38:23 +0000 (17:38 -0800)
commit56791c9185128842fc46ae7a763156c84ae5054d
treecca9ce0c27aa6de305371c93591c7f2e2dd57510tree
parentcd1f8110973669dfd520d9f993a670dfeac9d0d3commit | 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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