[Mesa-dev] [PATCH] mesa/st: Avoid a NULL-ptr dereference on possible missing callback

[Edward O'Callaghan]

Just because we miss a gallium driver callback don't dereference
invalid memory.

Signed-off-by: Edward O'Callaghan <eocallaghan at alterapraxis.com>
---
 src/mesa/state_tracker/st_cb_queryobj.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/mesa/state_tracker/st_cb_queryobj.c b/src/mesa/state_tracker/st_cb_queryobj.c
index cdb9efc..e9abc38 100644
--- a/src/mesa/state_tracker/st_cb_queryobj.c
+++ b/src/mesa/state_tracker/st_cb_queryobj.c
@@ -402,6 +402,7 @@ st_StoreQueryResult(struct gl_context *ctx, struct gl_query_object *q,
       index = 0;
    }
 
+   assert(pipe->get_query_result_resource);
    pipe->get_query_result_resource(pipe, stq->pq, wait, result_type, index,
                                    stObj->buffer, offset);
 }
-- 
2.5.5