[PATCH] libata: move err_mask to ata_queued_cmd

  - remove err_mask from the parameter list of the complete functions
  - move err_mask to ata_queued_cmd
  - initialize qc->err_mask when needed
  - for each function call to ata_qc_complete(), replace the err_mask parameter with qc->err_mask.

Signed-off-by: Albert Lee <albertcc@tw.ibm.com>

===============
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
diff --git a/drivers/scsi/sata_sil24.c b/drivers/scsi/sata_sil24.c
index e0d6f19..a0ad3ed 100644
--- a/drivers/scsi/sata_sil24.c
+++ b/drivers/scsi/sata_sil24.c
@@ -654,7 +654,8 @@
 	 */
 	printk(KERN_ERR "ata%u: command timeout\n", ap->id);
 	qc->scsidone = scsi_finish_command;
-	ata_qc_complete(qc, AC_ERR_OTHER);
+	qc->err_mask |= AC_ERR_OTHER;
+	ata_qc_complete(qc);
 
 	sil24_reset_controller(ap);
 }
@@ -711,8 +712,10 @@
 		sil24_reset_controller(ap);
 	}
 
-	if (qc)
-		ata_qc_complete(qc, err_mask);
+	if (qc) {
+		qc->err_mask |= err_mask;
+		ata_qc_complete(qc);
+	}
 }
 
 static inline void sil24_host_intr(struct ata_port *ap)
@@ -734,8 +737,10 @@
 		 */
 		sil24_update_tf(ap);
 
-		if (qc)
-			ata_qc_complete(qc, ac_err_mask(pp->tf.command));
+		if (qc) {
+			qc->err_mask |= ac_err_mask(pp->tf.command);
+			ata_qc_complete(qc);
+		}
 	} else
 		sil24_error_intr(ap, slot_stat);
 }