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authorTejun Heo <htejun@gmail.com>2006-11-21 10:40:51 +0900
committerTejun Heo <htejun@gmail.com>2006-12-03 17:56:23 +0900
commita569a30d301e4dbc0ad67a211292edece2da1146 (patch)
tree3c1fcb81485de3c5489c32251e9b671897517f6c /drivers/ata/libata-eh.c
parent6a36261e63770ab61422550b774fe949ccca5fa9 (diff)
downloadlinux-next-a569a30d301e4dbc0ad67a211292edece2da1146.tar.gz
[PATCH] libata: don't request sense if the port is frozen
If EH command is issued to a frozen port, it fails with AC_ERR_SYSTEM. libata used to request sense even when the port is frozen needlessly adding AC_ERR_SYSTEM to err_mask. Don't do it. Signed-off-by: Tejun Heo <htejun@gmail.com>
Diffstat (limited to 'drivers/ata/libata-eh.c')
-rw-r--r--drivers/ata/libata-eh.c28
1 files changed, 15 insertions, 13 deletions
diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index 5aa7f0907e83..2aad7b79d6dd 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -1136,19 +1136,21 @@ static unsigned int ata_eh_analyze_tf(struct ata_queued_cmd *qc,
break;
case ATA_DEV_ATAPI:
- tmp = atapi_eh_request_sense(qc->dev,
- qc->scsicmd->sense_buffer);
- if (!tmp) {
- /* ATA_QCFLAG_SENSE_VALID is used to tell
- * atapi_qc_complete() that sense data is
- * already valid.
- *
- * TODO: interpret sense data and set
- * appropriate err_mask.
- */
- qc->flags |= ATA_QCFLAG_SENSE_VALID;
- } else
- qc->err_mask |= tmp;
+ if (!(qc->ap->pflags & ATA_PFLAG_FROZEN)) {
+ tmp = atapi_eh_request_sense(qc->dev,
+ qc->scsicmd->sense_buffer);
+ if (!tmp) {
+ /* ATA_QCFLAG_SENSE_VALID is used to
+ * tell atapi_qc_complete() that sense
+ * data is already valid.
+ *
+ * TODO: interpret sense data and set
+ * appropriate err_mask.
+ */
+ qc->flags |= ATA_QCFLAG_SENSE_VALID;
+ } else
+ qc->err_mask |= tmp;
+ }
}
if (qc->err_mask & (AC_ERR_HSM | AC_ERR_TIMEOUT | AC_ERR_ATA_BUS))