---
src/gallium/drivers/r600/r600_state_common.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/gallium/drivers/r600/r600_state_common.c
b/src/gallium/drivers/r600/r600_state_common.c
index b0e66ac..34c70ed 100644
--- a/src/gallium/drivers/r600/r600_state_common.c
+++ b/src/gallium/drivers/r600/r600_state_common.c
@@ -926,7 +926,7 @@ static void r600_set_constant_buffer(struct pipe_context
*ctx, uint shader, uint
/* Note that the state tracker can unbind constant buffers by
* passing NULL here.
*/
- if (unlikely(!input)) {
+ if (unlikely(!input || (!input->buffer && !input->user_buffer))) {
state->enabled_mask &= ~(1 << index);
state->dirty_mask &= ~(1 << index);
pipe_resource_reference(&state->cb[index].buffer, NULL);
--
1.7.10.4
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