pata_bf54x: decrease count first.

When count reaches 0 the postfix decrement still subtracts (to -1),
so bfin_reset_controller() returns as if the busy flag was cleared
while it was not.

Signed-off-by: Roel Kluin <12o3l@tiscali.nl>
Acked-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/ata/pata_bf54x.c b/drivers/ata/pata_bf54x.c
index e4cf73c4b70b..a75de0684c15 100644
--- a/drivers/ata/pata_bf54x.c
+++ b/drivers/ata/pata_bf54x.c
@@ -1417,7 +1417,7 @@ static int bfin_reset_controller(struct ata_host *host)
         count = 10000000;
         do {
                 status = read_atapi_register(base, ATA_REG_STATUS);
-        } while (count-- && (status & ATA_BUSY));
+        } while (--count && (status & ATA_BUSY));
 
         /* Enable only ATAPI Device interrupt */
         ATAPI_SET_INT_MASK(base, 1);