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[S390] cio: Fix ungroup vs. machine check race in ccwgroup.
authorCornelia Huck <cornelia.huck@de.ibm.com>
Sat, 26 Jan 2008 13:10:50 +0000 (14:10 +0100)
committerMartin Schwidefsky <schwidefsky@de.ibm.com>
Sat, 26 Jan 2008 13:11:04 +0000 (14:11 +0100)
commit1a908c735aed44c8bbed303371202e416813b271
tree764da7edd4c8237b72429575e53003f280496c3btree | snapshot (tar.gz zip)
parent46258ab5e42eed5cbe20a83b732d6538c49ea2fecommit | diff
[S390] cio: Fix ungroup vs. machine check race in ccwgroup.

There are two ways for a ccwgroup device to be unregistered:
Via the ungroup attribute, or when on of the slave devices is killed
by a machine check. As we have to unregister the ccwgroup device
via a callback, we'll now have to check whether it hasn't been
already unregistered because of a machine check.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
drivers/s390/cio/ccwgroup.c diff | blob | blame | history