From: Marek Olšák <maraeo@gmail.com>
Date: Fri, 4 Jan 2013 17:27:21 +0000 (+0100)
Subject: r300g/swtcl: fix crash when setting vertex buffers
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=37fd455b21d4825b569a45ffd5d930347a042cea;p=mesa.git

r300g/swtcl: fix crash when setting vertex buffers

Broken by e73bf3b805de78299f1a652668ba4e6eab9bac94.
---

diff --git a/src/gallium/drivers/r300/r300_state.c b/src/gallium/drivers/r300/r300_state.c
index 050c8f44550..29e28b4dfb1 100644
--- a/src/gallium/drivers/r300/r300_state.c
+++ b/src/gallium/drivers/r300/r300_state.c
@@ -1659,6 +1659,9 @@ static void r300_set_vertex_buffers_swtcl(struct pipe_context* pipe,
                                   buffers, start_slot, count);
     draw_set_vertex_buffers(r300->draw, start_slot, count, buffers);
 
+    if (!buffers)
+        return;
+
     for (i = 0; i < count; i++) {
         if (buffers[i].user_buffer) {
             draw_set_mapped_vertex_buffer(r300->draw, start_slot + i,