use the kernel's generate_random_uuid()

diff --git a/bus.c b/bus.c
index fdc4a1c77e2eececc47f567b2ae9226a77f8c8c9..37f45d4eda49897ba3c3f887a5474c1ccb9a559d 100644 (file)
--- a/bus.c
+++ b/bus.c
@@ -41,10 +41,12 @@ bool kdbus_bus_uid_is_privileged(const struct kdbus_bus *bus)
 
 /**
  * kdbus_bus_ref() - increase the reference counter of a kdbus_bus
- * @bus:               The bus to unref
+ * @bus:               The bus to reference
  *
  * Every user of a bus, except for its creator, must add a reference to the
  * kdbus_bus using this function.
+ *
+ * Return: the bus itself
  */
 struct kdbus_bus *kdbus_bus_ref(struct kdbus_bus *bus)
 {
@@ -215,16 +217,8 @@ int kdbus_bus_new(struct kdbus_ns *ns,
        INIT_LIST_HEAD(&b->monitors_list);
        atomic64_set(&b->conn_seq_last, 0);
 
-       /* generate unique ID for this bus */
-       get_random_bytes(b->id128, sizeof(b->id128));
-
-       /* Set UUID version to 4 --- truly random generation */
-       b->id128[6] &= 0x0f;
-       b->id128[6] |= 0x40;
-
-       /* Set the UUID variant to DCE */
-       b->id128[8] &= 0x3f;
-       b->id128[8] |= 0x80;
+       /* generate unique bus id */
+       generate_random_uuid(b->id128);
 
        b->name = kstrdup(name, GFP_KERNEL);
        if (!b->name) {