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-rw-r--r--sound/core/seq/seq_device.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/sound/core/seq/seq_device.c b/sound/core/seq/seq_device.c
index d812dc88636..4260de90f36 100644
--- a/sound/core/seq/seq_device.c
+++ b/sound/core/seq/seq_device.c
@@ -380,6 +380,12 @@ static struct ops_list * create_driver(char *id)
/* set up driver entry */
strlcpy(ops->id, id, sizeof(ops->id));
mutex_init(&ops->reg_mutex);
+ /*
+ * The ->reg_mutex locking rules are per-driver, so we create
+ * separate per-driver lock classes:
+ */
+ lockdep_set_class(&ops->reg_mutex, (struct lock_class_key *)id);
+
ops->driver = DRIVER_EMPTY;
INIT_LIST_HEAD(&ops->dev_list);
/* lock this instance */