u_vbuf_mgr: initialize flag indicating that buffers have been updated

This fixes r300g errors:
r300: Cannot get a relocation in radeon_drm_cs_write_reloc.

diff --git a/src/gallium/auxiliary/util/u_vbuf_mgr.c b/src/gallium/auxiliary/util/u_vbuf_mgr.c
index 7add88e..096392f 100644 (file)
--- a/src/gallium/auxiliary/util/u_vbuf_mgr.c
+++ b/src/gallium/auxiliary/util/u_vbuf_mgr.c
@@ -560,7 +560,7 @@ void u_vbuf_mgr_draw_begin(struct u_vbuf_mgr *mgrb,
                            boolean *uploader_flushed)
 {
    struct u_vbuf_mgr_priv *mgr = (struct u_vbuf_mgr_priv*)mgrb;
-   boolean bufs_updated, upload_flushed = FALSE;
+   boolean bufs_updated = FALSE, upload_flushed = FALSE;
    int min_index, max_index;
 
    min_index = info->min_index - info->index_bias;