[PATCH 13/19] drm: add drm_mode_group_fini function

[Ilija Hadzic]

This is the opposite function of drm_mode_group_init. It will
be needed to properly cleanup the render node after removing it.

v2: - add planes

Signed-off-by: Ilija Hadzic <ihadzic at research.bell-labs.com>
---
 drivers/gpu/drm/drm_crtc.c |   11 +++++++++++
 include/drm/drm_crtc.h     |    1 +
 2 files changed, 12 insertions(+), 0 deletions(-)

diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index 78f2b96..cce3d25 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -947,6 +947,17 @@ int drm_mode_group_init(struct drm_mode_group *group, int total_objects)
 }
 EXPORT_SYMBOL(drm_mode_group_init);
 
+void drm_mode_group_fini(struct drm_mode_group *group)
+{
+	kfree(group->id_list);
+	group->id_list = NULL;
+	group->num_crtcs = 0;
+	group->num_connectors = 0;
+	group->num_encoders = 0;
+	group->num_planes = 0;
+}
+EXPORT_SYMBOL(drm_mode_group_fini);
+
 int drm_mode_group_init_legacy_group(struct drm_device *dev,
 				     struct drm_mode_group *group)
 {
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 939fed1..7c1227b 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -852,6 +852,7 @@ extern char *drm_get_tv_subconnector_name(int val);
 extern char *drm_get_tv_select_name(int val);
 extern void drm_fb_release(struct drm_file *file_priv);
 extern int drm_mode_group_init(struct drm_mode_group *group, int total_objects);
+extern void drm_mode_group_fini(struct drm_mode_group *group);
 extern int drm_mode_group_init_legacy_group(struct drm_device *dev, struct drm_mode_group *group);
 extern struct edid *drm_get_edid(struct drm_connector *connector,
 				 struct i2c_adapter *adapter);
-- 
1.7.8.5