[S390] cio: fix double unregistering of subchannels

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In some cases where the channel subsystem decides to drop a subchannel
device device_unregister may be called twice, which results in an oops.
The patch prevents this by only unregistering registered devices.

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

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Sebastian Ott 2008-07-14 09:59:20 +02:00 • committed by Heiko Carstens

parent e0bc24958e

commit ef60cd13ec

1 changed files with 2 additions and 1 deletions

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drivers/s390/cio/css.c

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