libata: fix off-by-one in error categorization
ATA_ECAT_DUBIOUS_BASE was too high by one and thus all DUBIOUS error
categorizations were wrong. This passed test because only ATA_BUS and
UNK_DEV were used during testing and the ones after them - ATA_BUS and
an overflowed entry - behaved similarly.
This patch fixes the problem by adding DUBIOUS_NONE category and use
it as base.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index 4195526..4e31071 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -61,12 +61,11 @@
ATA_ECAT_ATA_BUS = 1,
ATA_ECAT_TOUT_HSM = 2,
ATA_ECAT_UNK_DEV = 3,
- ATA_ECAT_DUBIOUS_ATA_BUS = 4,
- ATA_ECAT_DUBIOUS_TOUT_HSM = 5,
- ATA_ECAT_DUBIOUS_UNK_DEV = 6,
- ATA_ECAT_NR = 7,
-
- ATA_ECAT_DUBIOUS_BASE = ATA_ECAT_DUBIOUS_ATA_BUS,
+ ATA_ECAT_DUBIOUS_NONE = 4,
+ ATA_ECAT_DUBIOUS_ATA_BUS = 5,
+ ATA_ECAT_DUBIOUS_TOUT_HSM = 6,
+ ATA_ECAT_DUBIOUS_UNK_DEV = 7,
+ ATA_ECAT_NR = 8,
};
/* Waiting in ->prereset can never be reliable. It's sometimes nice
@@ -1499,7 +1498,7 @@
*xfer_ok = 1;
if (!*xfer_ok)
- base = ATA_ECAT_DUBIOUS_BASE;
+ base = ATA_ECAT_DUBIOUS_NONE;
if (err_mask & AC_ERR_ATA_BUS)
return base + ATA_ECAT_ATA_BUS;
