sna: Assert that gc->funcs is never set to NULL

References: https://bugs.freedesktop.org/show_bug.cgi?id=71415
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

diff --git a/src/sna/sna_accel.c b/src/sna/sna_accel.c
index 9cff1de..983a5f3 100644 (file)
--- a/src/sna/sna_accel.c
+++ b/src/sna/sna_accel.c
@@ -3948,6 +3948,7 @@ static bool must_check sna_gc_move_to_cpu(GCPtr gc,
        assert(gc->ops == (GCOps *)&sna_gc_ops);
        gc->ops = (GCOps *)&sna_gc_ops__cpu;
 
+       assert(gc->funcs);
        sgc->old_funcs = gc->funcs;
        gc->funcs = (GCFuncs *)&sna_gc_funcs__cpu;
 
@@ -4010,6 +4011,7 @@ static void sna_gc_move_to_gpu(GCPtr gc)
 
        gc->ops = (GCOps *)&sna_gc_ops;
        gc->funcs = sna_gc(gc)->old_funcs;
+       assert(gc->funcs);
        gc->pCompositeClip = sna_gc(gc)->priv;
        assert(gc->pCompositeClip);
 }