drm: Drop locking cargo-cult from drm_mode_config_init

This is single-threaded setup code, no need for locks. And anyway,
all properties need to be set up before the driver is registered
anyway, they can't be hot-added.

Reviewed-by: Sean Paul <seanpaul@chromium.org>
Reviewed-by: Daniel Stone <daniels@collabora.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20161213230814.19598-5-daniel.vetter@ffwll.ch
diff --git a/drivers/gpu/drm/drm_mode_config.c b/drivers/gpu/drm/drm_mode_config.c
index 5aba075..a9a40dc 100644
--- a/drivers/gpu/drm/drm_mode_config.c
+++ b/drivers/gpu/drm/drm_mode_config.c
@@ -375,9 +375,7 @@
 	idr_init(&dev->mode_config.tile_idr);
 	ida_init(&dev->mode_config.connector_ida);
 
-	drm_modeset_lock_all(dev);
 	drm_mode_create_standard_properties(dev);
-	drm_modeset_unlock_all(dev);
 
 	/* Just to be sure */
 	dev->mode_config.num_fb = 0;