radeonsi: fix a crash if ps_shader.cso is NULL in si_get_total_colormask

diff --git a/src/gallium/drivers/radeonsi/si_pipe.h b/src/gallium/drivers/radeonsi/si_pipe.h
index a794633d14b9025383eebc499c3b964fd7123980..9fb18a84d319ea7d8494e0a0cf820de209ec79f2 100644 (file)
--- a/src/gallium/drivers/radeonsi/si_pipe.h
+++ b/src/gallium/drivers/radeonsi/si_pipe.h
@@ -1237,6 +1237,9 @@ static inline unsigned si_get_total_colormask(struct si_context *sctx)
                return 0;
 
        struct si_shader_selector *ps = sctx->ps_shader.cso;
+       if (!ps)
+               return 0;
+
        unsigned colormask = sctx->framebuffer.colorbuf_enabled_4bit &
                             sctx->queued.named.blend->cb_target_mask;