diff --git a/scst/src/scst_main.c b/scst/src/scst_main.c
index e7993f67d..6414539cb 100644
--- a/scst/src/scst_main.c
+++ b/scst/src/scst_main.c
@@ -998,7 +998,9 @@ out:
 
 #ifndef CONFIG_SCST_PROC
 out_del_unlocked:
+	mutex_lock(&scst_mutex);
 	list_del(&dev->dev_list_entry);
+	mutex_unlock(&scst_mutex);
 	scst_free_device(dev);
 	goto out;
 #else