diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c
index cbc14ea..f0c4aa2 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 *, pm_message_t msg);
 static int sr_resume(struct device *);
+static int sr_runtime_resume(struct device *);
+
+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,
 };
@@ -213,6 +219,23 @@ static int sr_suspend(struct device *dev, pm_message_t msg)
 static int sr_resume(struct device *dev)
 {
 	struct scsi_cd *cd;
+
+	/*
+	 * If ODD is runtime suspended before system pm, unblock disk
+	 * events now since on system resume we will fully resume it
+	 * and set its runtime status to active.
+	 */
+	if (pm_runtime_suspended(dev)) {
+		cd = dev_get_drvdata(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;
 
 	cd = dev_get_drvdata(dev);