diff --git a/drivers/gpu/drm/drm_debugfs_crc.c b/drivers/gpu/drm/drm_debugfs_crc.c
index aa13e73..1722d8f 100644
--- a/drivers/gpu/drm/drm_debugfs_crc.c
+++ b/drivers/gpu/drm/drm_debugfs_crc.c
@@ -177,9 +177,13 @@
 	 * guess when this particular piece of HW will be ready to start
 	 * generating CRCs.
 	 */
-	wait_event_lock_irq(crc->wq, crtc_crc_data_count(crc), crc->lock);
+	ret = wait_event_interruptible_lock_irq(crc->wq,
+						crtc_crc_data_count(crc),
+						crc->lock);
 	spin_unlock_irq(&crc->lock);
 
+	WARN_ON(ret);
+
 	return 0;
 
 err_disable: