xnu-2050.7.9.tar.gz

[apple/xnu.git] / osfmk / device / device_init.c

diff --git a/osfmk/device/device_init.c b/osfmk/device/device_init.c
index 05e76bc0e6d52c33a58cfeb4cd69e6204dc8da9f..b935e14c62334b9c86a8b99743eedbd376e68161 100644 (file)
--- a/osfmk/device/device_init.c
+++ b/osfmk/device/device_init.c
@@ -81,6 +81,11 @@
 
 ipc_port_t     master_device_port;
 
+lck_grp_attr_t * dev_lck_grp_attr;
+lck_grp_t * dev_lck_grp;
+lck_attr_t * dev_lck_attr;
+lck_mtx_t iokit_obj_to_port_binding_lock;
+
 void
 device_service_create(void)
 {
@@ -92,6 +97,16 @@ device_service_create(void)
        kernel_set_special_port(host_priv_self(), HOST_IO_MASTER_PORT,
                                ipc_port_make_send(master_device_port));
 
+       /* allocate device lock group attribute and group */
+       dev_lck_grp_attr= lck_grp_attr_alloc_init();
+       dev_lck_grp = lck_grp_alloc_init("device",  dev_lck_grp_attr);
+
+       /* Allocate device lock attribute */
+       dev_lck_attr = lck_attr_alloc_init();
+
+       /* Initialize the IOKit object to port binding lock */
+       lck_mtx_init(&iokit_obj_to_port_binding_lock, dev_lck_grp, dev_lck_attr);
+
 #if 0
        ds_init();
        net_io_init();