radeonsi: prevent a negative buffer offset in si_upload_descriptors

diff --git a/src/gallium/drivers/radeonsi/si_descriptors.c b/src/gallium/drivers/radeonsi/si_descriptors.c
index b6e767c2546ee31995ffa60dfbe2ba306808bbc3..b71815fac5c6bcea97c59dbbdb14523215a7d37c 100644 (file)
--- a/src/gallium/drivers/radeonsi/si_descriptors.c
+++ b/src/gallium/drivers/radeonsi/si_descriptors.c
@@ -167,11 +167,10 @@ static bool si_upload_descriptors(struct si_context *sctx,
        }
 
        uint32_t *ptr;
-       int buffer_offset;
-       u_upload_alloc(sctx->b.b.const_uploader, 0, upload_size,
+       unsigned buffer_offset;
+       u_upload_alloc(sctx->b.b.const_uploader, first_slot_offset, upload_size,
                       si_optimal_tcc_alignment(sctx, upload_size),
-                      (unsigned*)&buffer_offset,
-                      (struct pipe_resource**)&desc->buffer,
+                      &buffer_offset, (struct pipe_resource**)&desc->buffer,
                       (void**)&ptr);
        if (!desc->buffer) {
                desc->gpu_address = 0;