[PATCH 11/12] libata: schedule probing after SError access failure during autopsy

[Tejun Heo <htejun@gmail.com>]

If SError isn't accessible, EH can't tell whether hotplug has happened
or not.  Report SError read failure with AC_ERR_OTHER and schedule
probing with hardreset.  This will be mainly useful for PMPs.

Signed-off-by: Tejun Heo <htejun@gmail.com>
---
 drivers/ata/libata-eh.c |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)

diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index 6518108..fe4be8a 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -1413,8 +1413,12 @@ static void ata_eh_autopsy(struct ata_port *ap)
 	if (rc == 0) {
 		ehc->i.serror |= serror;
 		ata_eh_analyze_serror(ap);
-	} else if (rc != -EOPNOTSUPP)
+	} else if (rc != -EOPNOTSUPP) {
+		/* SError read failed, force hardreset and probing */
+		ata_ehi_schedule_probe(&ehc->i);
 		ehc->i.action |= ATA_EH_HARDRESET;
+		ehc->i.err_mask |= AC_ERR_OTHER;
+	}
 
 	/* analyze NCQ failure */
 	ata_eh_analyze_ncq_error(ap);
-- 
1.5.0.3