[intel] intel_batchbuffer_flush using uninit 'used' to check for buffer empty

Make sure 'used' tracks the right value through the whole function.
Also, use GLint for intel_batchbuffer_space in case we do bad things
in the future.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/mesa/drivers/dri/intel/intel_batchbuffer.h b/src/mesa/drivers/dri/intel/intel_batchbuffer.h
index 7268bd59da..5e8b14b401 100644
--- a/src/mesa/drivers/dri/intel/intel_batchbuffer.h
+++ b/src/mesa/drivers/dri/intel/intel_batchbuffer.h
@@ -88,7 +88,7 @@ GLboolean intel_batchbuffer_emit_reloc(struct intel_batchbuffer *batch,
  * be passed as structs rather than dwords, but that's a little bit of
  * work...
  */
-static INLINE GLuint
+static INLINE GLint
 intel_batchbuffer_space(struct intel_batchbuffer *batch)
 {
    return (batch->size - BATCH_RESERVED) - (batch->ptr - batch->map);