[SCSI] pm8001: Fix bogus interrupt state flag issue.

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Static checker is giving following warning:
" error: calling 'spin_unlock_irqrestore()' with bogus flags"

The code flow is as shown below:
process_oq() --> process_one_iomb --> mpi_sata_completion

In 'mpi_sata_completion'
the first call for 'spin_unlock_irqrestore()' is with flags=0,
which is as good as 'spin_unlock_irq()' ( unconditional interrupt
enabling).

So for better performance 'spin_unlock_irqrestore()' can be replaced
with 'spin_unlock_irq()' and 'spin_lock_irqsave()' can be replaced by
'spin_lock_irq()'.

Signed-off-by: Santosh Nayak <santoshprasadnayak@gmail.com>
Acked-by: Jack Wang <jack_wang@usish.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

...

This commit is contained in:

Santosh Nayak 2012-02-26 19:03:30 +05:30 • committed by James Bottomley

parent cd9b3d04b4

commit bdaefbf580

1 changed files with 28 additions and 30 deletions

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drivers/scsi/pm8001/pm8001_hwi.c

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