pata_amd: fix sparse warning
Current code is essentially choosing between dividing by 1 or dividing by two, make the conditions a little more obvious. As a bonus, removes a sparse error: drivers/ata/pata_amd.c:59:11: warning: symbol '__x' shadows an earlier one drivers/ata/pata_amd.c:59:11: originally declared here Signed-off-by: NHarvey Harrison <harvey.harrison@gmail.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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