r300g: more solid is_buffer_referenced implementation

This fixes crash from 7a1b5c937fa32968a04a11649e456a1ef8c5b442,
and also removes the unused "map" pointer.

1 files changed, 3 insertions, 3 deletions

diff --git a/src/gallium/drivers/r300/r300_render.c b/src/gallium/drivers/r300/r300_render.c
index 26ff71c8461..a3fd8cc67d8 100644
--- a/src/gallium/drivers/r300/r300_render.c
+++ b/src/gallium/drivers/r300/r300_render.c
@@ -152,9 +152,9 @@ static boolean immd_is_good_idea(struct r300_context *r300,
         if (!checked[vbi]) {
             vbuf = &r300->vertex_buffer[vbi];
 
-            if (r300->rws->is_buffer_referenced(r300->rws,
-                                                r300_buffer(vbuf->buffer)->buf,
-                                                R300_REF_CS | R300_REF_HW)) {
+            if (r300_buffer_is_referenced(&r300->context,
+                                          vbuf->buffer,
+                                          R300_REF_CS | R300_REF_HW)) {
                 /* It's a very bad idea to map it... */
                 return FALSE;
             }