tree 4e1ef91c88627e2a4af29dc2ff5aba38397e2f0c
parent ec64333c3a9bc52e34d79cff23acf4e5764b1353
author Sebastian Ott <sebott@linux.vnet.ibm.com> 1260186697 +0100
committer Martin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com> 1260186692 +0100

[S390] cio: handle busy subchannel in ccw_device_move_to_sch

Try to disable the old subchannel before we ask the driver core
to move the attached device to a new parent. This way we can use
the QUIESCE state during shutdown which prevents a possible use
after free situation in some error cases.

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