[S390] cio: handle busy subchannel in ccw_device_move_to_sch

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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>

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Sebastian Ott 2009-12-07 12:51:37 +01:00 • committed by Martin Schwidefsky

parent ec64333c3a

commit 0c609fca24

1 changed files with 22 additions and 2 deletions

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drivers/s390/cio/device.c

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