s390/qdio: cancel the ESTABLISH ccw after timeout

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When the ESTABLISH ccw does not complete within the specified timeout,
try our best to cancel the ccw program that is still active on the
device. Otherwise the IO subsystem might be accessing it even after
the driver eg. called qdio_free().

Fixes: 779e6e1c72 ("[S390] qdio: new qdio driver.")
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Reviewed-by: Benjamin Block <bblock@linux.ibm.com>
Cc: <stable@vger.kernel.org> # 2.6.27
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>

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Julian Wiedmann 2021-05-31 18:33:02 +03:00 • committed by Heiko Carstens

parent 2c197870e4

commit 1c1dc8bda3

1 changed files with 30 additions and 21 deletions

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drivers/s390/cio/qdio_main.c

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