api: storage: Avoid enumeration for non-configured subsystem

If a subsystem wasn't configured, avoid enumeration.

Signed-off-by: Emmanuel Vadot <manu@bidouilliste.com>

1 files changed, 5 insertions, 1 deletions

diff --git a/api/api_storage.c b/api/api_storage.c
index d425a9ad1d..b5aaba1091 100644
--- a/api/api_storage.c
+++ b/api/api_storage.c
@@ -41,7 +41,7 @@ struct stor_spec {
         char            *name;
 };
 
-static struct stor_spec specs[ENUM_MAX] = { { 0, 0, 0, 0, "" }, };
+static struct stor_spec specs[ENUM_MAX] = { { 0, 0, 0, 0, NULL }, };
 
 
 void dev_stor_init(void)
@@ -105,6 +105,10 @@ static int dev_stor_get(int type, int first, int *more, struct device_info *di)
 
         struct blk_desc *dd;
 
+        /* Wasn't configured for this type, return 0 directly */
+        if (specs[type].name == NULL)
+                return 0;
+
         if (first) {
                 di->cookie = (void *)blk_get_dev(specs[type].name, 0);
                 if (di->cookie == NULL)