tree 32b6282ae63318d92c630f41a3ca6fd04e4bbbbf
parent 4bc0c4f9e74e7a5d62ef4db923b377f2aa474a8f
author Peter Oberparleiter <peter.oberparleiter@de.ibm.com> 1154962833 +0200
committer Martin Schwidefsky <schwidefsky@de.ibm.com> 1154962833 +0200

[S390] lost interrupt after chpid vary off/on cycle.

I/O on a CCW device may stall if a channel path to that device is
logicaly varied off/on. A user I/O interrupt can get misinterpreted
as interrupt for an internal path verification operation due to a
missing check and is therefore never reported to the device driver.

Correct check for pending interruptions before starting path
verification.

Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>