diff --git a/lib/test_firmware.c b/lib/test_firmware.c
index 2baa275a6ddf..76550d2e2edc 100644
--- a/lib/test_firmware.c
+++ b/lib/test_firmware.c
@@ -1114,6 +1114,7 @@ static int __init test_firmware_init(void)
 
 	rc = misc_register(&test_fw_misc_device);
 	if (rc) {
+		__test_firmware_config_free();
 		kfree(test_fw_config);
 		pr_err("could not register misc device: %d\n", rc);
 		return rc;