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authorRoel Kluin <12o3l@tiscali.nl>2008-04-25 11:37:54 +0800
committerJeff Garzik <jgarzik@redhat.com>2008-04-25 01:26:28 -0400
commitf9d42491723dbb77bdc9b9dc7e096ea57d535992 (patch)
tree8373ddad57fea6c7d85e80e196395b086c994b20 /drivers/ata
parent85afb934575abdff1b2ac8ea4d522d1355f22a89 (diff)
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>
Diffstat (limited to 'drivers/ata')
-rw-r--r--drivers/ata/pata_bf54x.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/ata/pata_bf54x.c b/drivers/ata/pata_bf54x.c
index e4cf73c4b70..a75de0684c1 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);