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Julian Wiedmann f8c7afcb6b s390/qdio: put thinint indicator after early error

[ Upstream commit 75e82bec6b ]

qdio_establish() calls qdio_setup_thinint() via qdio_setup_irq().
If the subsequent qdio_establish_thinint() fails, we miss to put the
DSCI again. Thus the DSCI isn't available for re-use. Given enough of
such errors, we could end up with having only the shared DSCI available.

Merge qdio_setup_thinint() into qdio_establish_thinint(), and deal with
such an error internally.

Fixes: 779e6e1c72 ("[S390] qdio: new qdio driver.")
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Reviewed-by: Benjamin Block <bblock@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2020-06-30 15:38:23 -04:00

block

s390/dasd: fix endless loop after read unit address configuration

2019-08-06 18:29:41 +02:00

char

s390/3270: fix lockdep false positive on view->lock

2019-05-16 19:43:41 +02:00

cio

s390/qdio: put thinint indicator after early error

2020-06-30 15:38:23 -04:00

crypto

s390/zcrypt: Introduce CEX6 toleration