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(parent: e0bc249) | patch
[S390] cio: fix double unregistering of subchannels
authorSebastian Ott <sebott@linux.vnet.ibm.com>
Mon, 14 Jul 2008 07:59:20 +0000 (09:59 +0200)
committerHeiko Carstens <heiko.carstens@de.ibm.com>
Mon, 14 Jul 2008 08:02:17 +0000 (10:02 +0200)
commitef60cd13ecee0ccf2439d63013cbfc798aea2bb9
tree1d0dff750b0c031a1476d14a4fc2dd5071a08aaftree | snapshot (tar.gz zip)
parente0bc24958e1305efe176adc9d5f23a09e84c0058commit | diff
[S390] cio: fix double unregistering of subchannels

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>
drivers/s390/cio/css.c diff | blob | blame | history