On ti, 2016-10-18 at 09:40 +0800, Zhenyu Wang wrote: > @@ -134,7 +134,7 @@ static int render_mmio_to_ring_id(struct intel_gvt *gvt, unsigned int reg) > > reg &= ~GENMASK(11, 0); > for (i = 0; i < I915_NUM_ENGINES; i++) { > - if (gvt->dev_priv->engine[i].mmio_base == reg) > + if (gvt->dev_priv->engine[i]->mmio_base == reg) > return i; > } This loop is bad now that engine[i] might be NULL. Use for_each_engine instead. Regards, Joonas -- Joonas Lahtinen Open Source Technology Center Intel Corporation _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx