[PATCH 10/16] drm: add drm_mode_group_fini function

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

Signed-off-by: Ilija Hadzic <ihadzic@xxxxxxxxxxxxxxxxxxxxxx>
---
 drivers/gpu/drm/drm_crtc.c |   10 ++++++++++
 include/drm/drm_crtc.h     |    1 +
 2 files changed, 11 insertions(+), 0 deletions(-)

diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index 1e0ff2d..9af822b 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -946,6 +946,16 @@ 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;
+}
+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 2110a82..86f4d9a 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -850,6 +850,7 @@ 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

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