s390/ccwgroup: release the cdevs from within dev->release()

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Wiring up the cdevs is an essential part of the gdev creation. So
release them during the gdev destruction, ie. on the last put_device().
This could cause us to hold on to the cdevs a tiny bit longer, but
that's not a real concern.

As we have much less certainty of what context this put_device() is
executed from, switch to irqsave locking.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>

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Julian Wiedmann 2021-04-24 12:12:38 +02:00 • committed by Vasily Gorbik

parent 95c09f0344

commit 197cec2853

1 changed files with 17 additions and 32 deletions

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drivers/s390/cio/ccwgroup.c

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