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-rw-r--r--src/mesa/drivers/dri/intel/intel_buffer_objects.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/intel/intel_buffer_objects.c b/src/mesa/drivers/dri/intel/intel_buffer_objects.c
index 8ab41f8d279..117d4daf3ba 100644
--- a/src/mesa/drivers/dri/intel/intel_buffer_objects.c
+++ b/src/mesa/drivers/dri/intel/intel_buffer_objects.c
@@ -202,6 +202,9 @@ intel_bufferobj_subdata(GLcontext * ctx,
struct intel_context *intel = intel_context(ctx);
struct intel_buffer_object *intel_obj = intel_buffer_object(obj);
+ if (size == 0)
+ return;
+
assert(intel_obj);
if (intel_obj->region)
@@ -426,6 +429,9 @@ intel_bufferobj_flush_mapped_range(GLcontext *ctx, GLenum target,
if (intel_obj->range_map_buffer == NULL)
return;
+ if (length == 0)
+ return;
+
temp_bo = drm_intel_bo_alloc(intel->bufmgr, "range map flush", length, 64);
drm_intel_bo_subdata(temp_bo, 0, length, intel_obj->range_map_buffer);