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-rw-r--r--drivers/scsi/libata-core.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c
index 1063928e382..9cd9053e78f 100644
--- a/drivers/scsi/libata-core.c
+++ b/drivers/scsi/libata-core.c
@@ -1009,6 +1009,22 @@ ata_exec_internal(struct ata_port *ap, struct ata_device *dev,
ata_qc_free(qc);
+ /* XXX - Some LLDDs (sata_mv) disable port on command failure.
+ * Until those drivers are fixed, we detect the condition
+ * here, fail the command with AC_ERR_SYSTEM and reenable the
+ * port.
+ *
+ * Note that this doesn't change any behavior as internal
+ * command failure results in disabling the device in the
+ * higher layer for LLDDs without new reset/EH callbacks.
+ *
+ * Kill the following code as soon as those drivers are fixed.
+ */
+ if (ap->flags & ATA_FLAG_PORT_DISABLED) {
+ err_mask |= AC_ERR_SYSTEM;
+ ata_port_probe(ap);
+ }
+
return err_mask;
}