diff --git a/drivers/scsi/scsi_pm.c b/drivers/scsi/scsi_pm.c
index d4201de..19bba47 100644
--- a/drivers/scsi/scsi_pm.c
+++ b/drivers/scsi/scsi_pm.c
@@ -34,14 +34,18 @@ static int scsi_dev_type_suspend(struct device *dev, pm_message_t msg)
 	return err;
 }
 
-static int scsi_dev_type_resume(struct device *dev)
+static int scsi_dev_type_resume(struct device *dev, bool runtime)
 {
 	struct device_driver *drv;
 	int err = 0;
+	int (*resume)(struct device *);
 
 	drv = dev->driver;
-	if (drv && drv->resume)
-		err = drv->resume(dev);
+	if (runtime && drv && drv->pm && drv->pm->runtime_resume)
+		resume = drv->pm->runtime_resume;
+	else
+		resume = drv ? drv->resume : NULL;
+	err = resume(dev);
 	scsi_device_resume(to_scsi_device(dev));
 	dev_dbg(dev, "scsi resume: %d\n", err);
 	return err;
@@ -84,7 +88,7 @@ static int scsi_bus_resume_common(struct device *dev)
 		 * Resume it on behalf of child.
 		 */
 		pm_runtime_get_sync(dev->parent);
-		err = scsi_dev_type_resume(dev);
+		err = scsi_dev_type_resume(dev, false);
 		pm_runtime_put_sync(dev->parent);
 	}
 
@@ -159,7 +163,7 @@ static int scsi_runtime_resume(struct device *dev)
 
 	dev_dbg(dev, "scsi_runtime_resume\n");
 	if (scsi_is_sdev_device(dev))
-		err = scsi_dev_type_resume(dev);
+		err = scsi_dev_type_resume(dev, true);
 
 	/* Insert hooks here for targets, hosts, and transport classes */
 
diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c
index 69c9e22..2f159aa 100644
--- a/drivers/scsi/sr.c
+++ b/drivers/scsi/sr.c
@@ -82,6 +82,11 @@ static int sr_remove(struct device *);
 static int sr_done(struct scsi_cmnd *);
 static int sr_suspend(struct device *dev, pm_message_t msg);
 static int sr_resume(struct device *dev);
+static int sr_runtime_resume(struct device *dev);
+
+static struct dev_pm_ops sr_pm_ops = {
+	.runtime_resume = sr_runtime_resume,
+};
 
 static struct scsi_driver sr_template = {
 	.owner			= THIS_MODULE,
@@ -91,6 +96,7 @@ static struct scsi_driver sr_template = {
 		.remove		= sr_remove,
 		.suspend	= sr_suspend,
 		.resume		= sr_resume,
+		.pm		= &sr_pm_ops,
 	},
 	.done			= sr_done,
 };
@@ -215,6 +221,21 @@ static int sr_suspend(struct device *dev, pm_message_t msg)
 
 static int sr_resume(struct device *dev)
 {
+	struct scsi_cd *cd = dev_get_drvdata(dev);
+
+	/*
+	 * If ODD is runtime suspended before system pm, unblock disk
+	 * events now since on system resume, we will fully resume it
+	 * and set its rumtime status to active.
+	 */
+	if (pm_runtime_suspended(dev))
+		disk_unblock_events(cd->disk);
+
+	return 0;
+}
+
+static int sr_runtime_resume(struct device *dev)
+{
 	struct scsi_cd *cd;
 	struct scsi_sense_hdr sshdr;