diff options
| -rw-r--r-- | arch/sparc/kernel/mdesc.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/arch/sparc/kernel/mdesc.c b/arch/sparc/kernel/mdesc.c index 04b76267ddfa..f795ee015738 100644 --- a/arch/sparc/kernel/mdesc.c +++ b/arch/sparc/kernel/mdesc.c @@ -284,9 +284,26 @@ static struct mdesc_notifier_client *client_list; void mdesc_register_notifier(struct mdesc_notifier_client *client) { + bool supported = false; u64 node; + int i; mutex_lock(&mdesc_mutex); + + /* check to see if the node is supported for registration */ + for (i = 0; md_node_ops_table[i].name != NULL; i++) { + if (strcmp(md_node_ops_table[i].name, client->node_name) == 0) { + supported = true; + break; + } + } + + if (!supported) { + pr_err("MD: %s node not supported\n", client->node_name); + mutex_unlock(&mdesc_mutex); + return; + } + client->next = client_list; client_list = client; |