pm8001: add a new spinlock to protect the CCB

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Patch adds a new spinlock to protect the ccb management.
It may happen that concurrent threads become the same tag value
from the 'alloc' function', the spinlock prevents this situation.

Signed-off-by: Tomas Henzl <thenzl@redhat.com>
Acked-by: Suresh Thiagarajan <Suresh.Thiagarajan@pmcs.com>
Acked-by: Jack Wang <xjtuwjp@gmail.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>

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Tomas Henzl 2014-07-09 17:21:01 +05:30 • committed by Christoph Hellwig

parent 5533abca06

commit 646cdf0083

3 changed files with 8 additions and 1 deletions

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1

drivers/scsi/pm8001/pm8001_init.c

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7

drivers/scsi/pm8001/pm8001_sas.c

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1

drivers/scsi/pm8001/pm8001_sas.h

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