static int
drm_init(void)
{
extern int linux_guarantee_initialized(void);
int error;
error = linux_guarantee_initialized();
if (error)
return error;
if (ISSET(boothowto, AB_DEBUG))
drm_debug = ~(unsigned int)0;
spin_lock_init(&drm_minor_lock);
idr_init(&drm_minors_idr);
linux_mutex_init(&drm_global_mutex);
drm_connector_ida_init();
drm_global_init();
drm_sysctl_init(&drm_def);
drm_i2c_encoders_init();
return 0;
}
static int __init drm_core_init(void)
{
int ret = -ENOMEM;
drm_global_init();
drm_connector_ida_init();
idr_init(&drm_minors_idr);
if (register_chrdev(DRM_MAJOR, "drm", &drm_stub_fops))
goto err_p1;
drm_class = drm_sysfs_create(THIS_MODULE, "drm");
if (IS_ERR(drm_class)) {
printk(KERN_ERR "DRM: Error creating drm class.\n");
ret = PTR_ERR(drm_class);
goto err_p2;
}
drm_debugfs_root = debugfs_create_dir("dri", NULL);
if (!drm_debugfs_root) {
DRM_ERROR("Cannot create /sys/kernel/debug/dri\n");
ret = -1;
goto err_p3;
}
DRM_INFO("Initialized %s %d.%d.%d %s\n",
CORE_NAME, CORE_MAJOR, CORE_MINOR, CORE_PATCHLEVEL, CORE_DATE);
return 0;
err_p3:
drm_sysfs_destroy();
err_p2:
unregister_chrdev(DRM_MAJOR, "drm");
idr_destroy(&drm_minors_idr);
err_p1:
return ret;
}