In a few spots we iterate to ATA_MAX_QUEUE -1, including internal
knowledge that the last tag is the internal tag. Remove this
assumption.
Signed-off-by: Jens Axboe <axboe@xxxxxxxxx>
---
drivers/ata/libata-eh.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index 513b260bcff1..cbf7c9501e47 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -873,9 +873,12 @@ static int ata_eh_nr_in_flight(struct ata_port *ap)
int nr = 0;
/* count only non-internal commands */
- for (tag = 0; tag < ATA_MAX_QUEUE - 1; tag++)
+ for (tag = 0; tag < ATA_MAX_QUEUE; tag++) {
+ if (ata_tag_internal(tag))
+ continue;
if (ata_qc_from_tag(ap, tag))
nr++;
+ }
return nr;
}
@@ -900,7 +903,7 @@ void ata_eh_fastdrain_timerfn(struct timer_list *t)
/* No progress during the last interval, tag all
* in-flight qcs as timed out and freeze the port.
*/
- for (tag = 0; tag < ATA_MAX_QUEUE - 1; tag++) {
+ for (tag = 0; tag < ATA_MAX_QUEUE; tag++) {
struct ata_queued_cmd *qc = ata_qc_from_tag(ap, tag);
if (qc)
qc->err_mask |= AC_ERR_TIMEOUT;
--
2.7.4
--
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