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Commit ad222799 authored by Dave Airlie's avatar Dave Airlie
Browse files

drm: fix memory leak around mode_group (v2) 



This mode group id_list was never being freed.

v2: take David's suggestion to free in minor_free.

Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
parent 444c9a08

drivers/gpu/drm/drm_crtc.c

+6 −0
Original line number Diff line number Diff line
@@ -1378,6 +1378,12 @@ static int drm_mode_group_init(struct drm_device *dev, struct drm_mode_group *gr 
	return 0;

}



void drm_mode_group_destroy(struct drm_mode_group *group)

{

	kfree(group->id_list);

	group->id_list = NULL;

}



/*

 * NOTE: Driver's shouldn't ever call drm_mode_group_init_legacy_group - it is

 * the drm core's responsibility to set up mode control groups.

drivers/gpu/drm/drm_stub.c

+1 −0
Original line number Diff line number Diff line
@@ -294,6 +294,7 @@ static void drm_minor_free(struct drm_device *dev, unsigned int type) 


	slot = drm_minor_get_slot(dev, type);

	if (*slot) {

		drm_mode_group_destroy(&(*slot)->mode_group);

		kfree(*slot);

		*slot = NULL;

	}

include/drm/drm_crtc.h

+1 −0
Original line number Diff line number Diff line
@@ -915,6 +915,7 @@ extern const char *drm_get_tv_subconnector_name(int val); 
extern const char *drm_get_tv_select_name(int val);

extern void drm_fb_release(struct drm_file *file_priv);

extern int drm_mode_group_init_legacy_group(struct drm_device *dev, struct drm_mode_group *group);

extern void drm_mode_group_destroy(struct drm_mode_group *group);

extern bool drm_probe_ddc(struct i2c_adapter *adapter);

extern struct edid *drm_get_edid(struct drm_connector *connector,

				 struct i2c_adapter *adapter);