Use list_entry() instead of container_of() to access list members. Also drop unnecessary and misleading NULL checks on the result of list_entry(). Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx> --- drivers/gpu/drm/i915/gvt/dmabuf.c | 17 +++++------------ 1 file changed, 5 insertions(+), 12 deletions(-) diff --git a/drivers/gpu/drm/i915/gvt/dmabuf.c b/drivers/gpu/drm/i915/gvt/dmabuf.c index d4f883f35b95..4241af5074a9 100644 --- a/drivers/gpu/drm/i915/gvt/dmabuf.c +++ b/drivers/gpu/drm/i915/gvt/dmabuf.c @@ -148,7 +148,7 @@ static void dmabuf_gem_object_free(struct kref *kref) if (vgpu && vgpu->active && !list_empty(&vgpu->dmabuf_obj_list_head)) { list_for_each(pos, &vgpu->dmabuf_obj_list_head) { - dmabuf_obj = container_of(pos, + dmabuf_obj = list_entry(pos, struct intel_vgpu_dmabuf_obj, list); if (dmabuf_obj == obj) { list_del(pos); @@ -357,10 +357,8 @@ pick_dmabuf_by_info(struct intel_vgpu *vgpu, struct intel_vgpu_dmabuf_obj *ret = NULL; list_for_each(pos, &vgpu->dmabuf_obj_list_head) { - dmabuf_obj = container_of(pos, struct intel_vgpu_dmabuf_obj, - list); - if ((dmabuf_obj == NULL) || - (dmabuf_obj->info == NULL)) + dmabuf_obj = list_entry(pos, struct intel_vgpu_dmabuf_obj, list); + if (dmabuf_obj->info == NULL) continue; fb_info = (struct intel_vgpu_fb_info *)dmabuf_obj->info; @@ -387,11 +385,7 @@ pick_dmabuf_by_num(struct intel_vgpu *vgpu, u32 id) struct intel_vgpu_dmabuf_obj *ret = NULL; list_for_each(pos, &vgpu->dmabuf_obj_list_head) { - dmabuf_obj = container_of(pos, struct intel_vgpu_dmabuf_obj, - list); - if (!dmabuf_obj) - continue; - + dmabuf_obj = list_entry(pos, struct intel_vgpu_dmabuf_obj, list); if (dmabuf_obj->dmabuf_id == id) { ret = dmabuf_obj; break; @@ -600,8 +594,7 @@ void intel_vgpu_dmabuf_cleanup(struct intel_vgpu *vgpu) mutex_lock(&vgpu->dmabuf_lock); list_for_each_safe(pos, n, &vgpu->dmabuf_obj_list_head) { - dmabuf_obj = container_of(pos, struct intel_vgpu_dmabuf_obj, - list); + dmabuf_obj = list_entry(pos, struct intel_vgpu_dmabuf_obj, list); dmabuf_obj->vgpu = NULL; idr_remove(&vgpu->object_idr, dmabuf_obj->dmabuf_id); -- 2.25.1