radeon: rework mipmap tree reference counting

[mesa.git] / src / mesa / drivers / dri / r300 / r300_tex.c

diff --git a/src/mesa/drivers/dri/r300/r300_tex.c b/src/mesa/drivers/dri/r300/r300_tex.c
index 427237d200bff773f0963efdfcd95caa2ecdf4c4..7e94e93df2e657dc6df6aaa8758972956af5cec9 100644 (file)
--- a/src/mesa/drivers/dri/r300/r300_tex.c
+++ b/src/mesa/drivers/dri/r300/r300_tex.c
@@ -228,11 +228,8 @@ static void r300TexParameter(GLcontext * ctx, GLenum target,
                 * we just have to rely on loading the right subset of mipmap levels
                 * to simulate a clamped LOD.
                 */
-               if (t->mt) {
-                       radeon_miptree_unreference(t->mt);
-                       t->mt = 0;
-                       t->validated = GL_FALSE;
-               }
+               radeon_miptree_unreference(&t->mt);
+               t->validated = GL_FALSE;
                break;
 
        case GL_DEPTH_TEXTURE_MODE:
@@ -286,10 +283,8 @@ static void r300DeleteTexture(GLcontext * ctx, struct gl_texture_object *texObj)
                t->bo = NULL;
        }
 
-       if (t->mt) {
-               radeon_miptree_unreference(t->mt);
-               t->mt = 0;
-       }
+       radeon_miptree_unreference(&t->mt);
+
        _mesa_delete_texture_object(ctx, texObj);
 }