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    Subject[32/50] cciss: do not attempt to read from a write-only register
    2.6.33-longterm review patch.  If anyone has any objections, please let us know.

    ------------------

    From: "Stephen M. Cameron" <scameron@beardog.cce.hp.com>

    commit 07d0c38e7d84f911c72058a124c7f17b3c779a65 upstream.

    Most smartarrays will tolerate it, but some new ones don't.

    Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>

    Note: this is a regression caused by commit 1ddd5049
    Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

    ---
    drivers/block/cciss.h | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    --- a/drivers/block/cciss.h
    +++ b/drivers/block/cciss.h
    @@ -181,7 +181,7 @@ static void SA5_submit_command( ctlr_inf
    printk("Sending %x - down to controller\n", c->busaddr );
    #endif /* CCISS_DEBUG */
    writel(c->busaddr, h->vaddr + SA5_REQUEST_PORT_OFFSET);
    - readl(h->vaddr + SA5_REQUEST_PORT_OFFSET);
    + readl(h->vaddr + SA5_SCRATCHPAD_OFFSET);
    h->commands_outstanding++;
    if ( h->commands_outstanding > h->max_outstanding)
    h->max_outstanding = h->commands_outstanding;



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