[RFC 0/2] cpu: fix leak and udev race in register_cpu()

[Igor Mammedov]

Here is a crude attempt fix race the way suggested by Greg,
probably done wrong but hopefully in the right direction.

1. move "crash_notes" to static attributes to guarantee that it's
destroyed with CPU on unregister.

2. fixes race between hotplugged CPU and onlining it via udev, described here
https://lkml.org/lkml/2012/4/30/193

Igor Mammedov (2):
  cpu: fix crash_notes leak
  cpu: make sure that cpu/online file created before KOBJ_ADD is
    emitted

 drivers/base/cpu.c |   55 +++++++++++++++++++++++++++++++++++----------------
 1 files changed, 38 insertions(+), 17 deletions(-)

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