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[S390] cio: ensure proper locking during device recognition
authorPeter Oberparleiter <peter.oberparleiter@de.ibm.com>
Mon, 7 Dec 2009 11:51:23 +0000 (12:51 +0100)
committerMartin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com>
Mon, 7 Dec 2009 11:51:30 +0000 (12:51 +0100)
commitb0c958adbe5c7129ffdec76f8c1b177035f51ca1
tree0554af8ced7ac924e9f1bbe3c92a4de52767950dtree | snapshot
parent5e707e6c97f88583d3e22fc859392ba9d9d00db7commit | diff
[S390] cio: ensure proper locking during device recognition

Device recognition needs to be started with the ccw device lock
held to prevent race conditions between I/O starting and interrupt
reception.

Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
drivers/s390/cio/device.c diff | blob | history
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