r600g: Silence uninitialized variable warning.

diff --git a/src/gallium/winsys/r600/drm/evergreen_hw_context.c b/src/gallium/winsys/r600/drm/evergreen_hw_context.c
index 9b39c0c..7f21b53 100644 (file)
--- a/src/gallium/winsys/r600/drm/evergreen_hw_context.c
+++ b/src/gallium/winsys/r600/drm/evergreen_hw_context.c
@@ -762,7 +762,8 @@ void evergreen_context_draw(struct r600_context *ctx, const struct r600_draw *dr
        struct r600_bo *cb[12];
        struct r600_bo *db;
        unsigned ndwords = 9, flush;
-       struct r600_block *dirty_block, *next_block;
+       struct r600_block *dirty_block = NULL;
+       struct r600_block *next_block;
 
        if (draw->indices) {
                ndwords = 13;