Add check if the mount callback is set.

2021-12-13 21:10:17 +01:00
parent f6090319c7
commit 43d34814bf
1 changed files with 4 additions and 0 deletions
@@ -372,6 +372,10 @@ int do_mount(const char *type, const char *path, const char *args)
        pr_err("Unknown filesystem type: %s\n", type);
        return -ENODEV;
    }
+    if (fst->mount == NULL) {
+        pr_err("No mount callback set: %s\n", type);
+        return -ENODEV;
+    }
    vfs_file_t *file = fst->mount(path, args);
    if (file == NULL) {
        pr_err("Mount callback return a null pointer: %s\n", type);