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Commit cee26ac4 authored by Dave Airlie's avatar Dave Airlie
Browse files

drm/mode: use _object_find to find framebuffers. 



No point have this code dupliated at this point, use the
_object_find code instead now.

Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
Reviewed-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent d0f37cf6

drivers/gpu/drm/drm_crtc.c

+10 −25
Original line number Diff line number Diff line
@@ -362,8 +362,7 @@ static struct drm_mode_object *_object_find(struct drm_device *dev, 
		obj = NULL;

	/* don't leak out unref'd fb's */

	if (obj &&

	    (obj->type == DRM_MODE_OBJECT_FB ||

	     obj->type == DRM_MODE_OBJECT_BLOB))

	    obj->type == DRM_MODE_OBJECT_BLOB)

		obj = NULL;

	mutex_unlock(&dev->mode_config.idr_mutex);
@@ -478,23 +477,6 @@ int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb, 
}

EXPORT_SYMBOL(drm_framebuffer_init);



static struct drm_framebuffer *__drm_framebuffer_lookup(struct drm_device *dev,

							uint32_t id)

{

	struct drm_mode_object *obj = NULL;

	struct drm_framebuffer *fb;



	mutex_lock(&dev->mode_config.idr_mutex);

	obj = idr_find(&dev->mode_config.crtc_idr, id);

	if (!obj || (obj->type != DRM_MODE_OBJECT_FB) || (obj->id != id))

		fb = NULL;

	else

		fb = obj_to_fb(obj);

	mutex_unlock(&dev->mode_config.idr_mutex);



	return fb;

}



/**

 * drm_framebuffer_lookup - look up a drm framebuffer and grab a reference

 * @dev: drm device
@@ -507,11 +489,13 @@ static struct drm_framebuffer *__drm_framebuffer_lookup(struct drm_device *dev, 
struct drm_framebuffer *drm_framebuffer_lookup(struct drm_device *dev,

					       uint32_t id)

{

	struct drm_framebuffer *fb;

	struct drm_mode_object *obj;

	struct drm_framebuffer *fb = NULL;



	mutex_lock(&dev->mode_config.fb_lock);

	fb = __drm_framebuffer_lookup(dev, id);

	if (fb) {

	obj = _object_find(dev, id, DRM_MODE_OBJECT_FB);

	if (obj) {

		fb = obj_to_fb(obj);

		if (!kref_get_unless_zero(&fb->base.refcount))

			fb = NULL;

	}
@@ -3489,6 +3473,7 @@ int drm_mode_rmfb(struct drm_device *dev, 
{

	struct drm_framebuffer *fb = NULL;

	struct drm_framebuffer *fbl = NULL;

	struct drm_mode_object *obj;

	uint32_t *id = data;

	int found = 0;
@@ -3497,10 +3482,10 @@ int drm_mode_rmfb(struct drm_device *dev, 


	mutex_lock(&file_priv->fbs_lock);

	mutex_lock(&dev->mode_config.fb_lock);

	fb = __drm_framebuffer_lookup(dev, *id);

	if (!fb)

	obj = _object_find(dev, *id, DRM_MODE_OBJECT_FB);

	if (!obj)

		goto fail_lookup;



	fb = obj_to_fb(obj);

	list_for_each_entry(fbl, &file_priv->fbs, filp_head)

		if (fb == fbl)

			found = 1;