From 4b5cd433f9a4903b91ee90a5919d3515a358f53a Mon Sep 17 00:00:00 2001
From: internal <rjkm@rjkm-mail>
Date: Tue, 13 Dec 2022 13:33:09 +0100
Subject: [PATCH] check if MCI interface present

---
 ddbridge/ddbridge-mci.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/ddbridge/ddbridge-mci.c b/ddbridge/ddbridge-mci.c
index a37edc5..d2f143c 100644
--- a/ddbridge/ddbridge-mci.c
+++ b/ddbridge/ddbridge-mci.c
@@ -134,6 +134,8 @@ int ddb_mci_cmd_link(struct ddb_link *link,
 	struct mci_result res;
 	int stat;
 
+	if (!link->mci_ok)
+		return -EFAULT;
 	if (!result)
 		result = &res;
 	mutex_lock(&link->mci_lock);