diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index ee4c1ec..b8ac490 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -5979,9 +5979,8 @@
 	INIT_LIST_HEAD(&ap->eh_done_q);
 	init_waitqueue_head(&ap->eh_wait_q);
 	init_completion(&ap->park_req_pending);
-	setup_deferrable_timer(&ap->fastdrain_timer,
-			       ata_eh_fastdrain_timerfn,
-			       (unsigned long)ap);
+	timer_setup(&ap->fastdrain_timer, ata_eh_fastdrain_timerfn,
+		    TIMER_DEFERRABLE);
 
 	ap->cbl = ATA_CBL_NONE;
 
diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index e4effef..ece6fd9 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -879,9 +879,9 @@
 	return nr;
 }
 
-void ata_eh_fastdrain_timerfn(unsigned long arg)
+void ata_eh_fastdrain_timerfn(struct timer_list *t)
 {
-	struct ata_port *ap = (void *)arg;
+	struct ata_port *ap = from_timer(ap, t, fastdrain_timer);
 	unsigned long flags;
 	int cnt;
 
diff --git a/drivers/ata/libata.h b/drivers/ata/libata.h
index 839d487..08a245b 100644
--- a/drivers/ata/libata.h
+++ b/drivers/ata/libata.h
@@ -154,7 +154,7 @@
 extern void ata_eh_acquire(struct ata_port *ap);
 extern void ata_eh_release(struct ata_port *ap);
 extern void ata_scsi_error(struct Scsi_Host *host);
-extern void ata_eh_fastdrain_timerfn(unsigned long arg);
+extern void ata_eh_fastdrain_timerfn(struct timer_list *t);
 extern void ata_qc_schedule_eh(struct ata_queued_cmd *qc);
 extern void ata_dev_disable(struct ata_device *dev);
 extern void ata_eh_detach_dev(struct ata_device *dev);