linux-stable/drivers/s390
Julian Wiedmann b223e40ae7 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>
2020-06-25 15:41:51 +02:00
..
block s390/dasd: fix memleak in path handling error case 2020-01-12 12:12:00 +01:00
char s390/3270: fix lockdep false positive on view->lock 2019-05-16 19:42:21 +02:00
cio s390/qdio: put thinint indicator after early error 2020-06-25 15:41:51 +02:00
crypto s390/zcrypt: handle new reply code FILTERED_BY_HYPERVISOR 2020-01-04 13:59:54 +01:00
net s390/qeth: invoke softirqs after napi_schedule() 2019-11-20 18:00:04 +01:00
scsi scsi: zfcp: fix request object use-after-free in send path causing wrong traces 2020-06-03 08:18:13 +02:00
virtio s390/virtio: handle find on invalid queue gracefully 2019-03-23 14:35:20 +01:00
Makefile