diff --git a/fs/char_dev.c b/fs/char_dev.c
index 24b1425..687471d 100644
--- a/fs/char_dev.c
+++ b/fs/char_dev.c
@@ -91,6 +91,10 @@
 				break;
 		}
 
+		if (i < CHRDEV_MAJOR_DYN_END)
+			pr_warn("CHRDEV \"%s\" major number %d goes below the dynamic allocation range",
+				name, i);
+
 		if (i == 0) {
 			ret = -EBUSY;
 			goto out;