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path: root/src/gallium/drivers/nv50/nv50_shader_state.c
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Diffstat (limited to 'src/gallium/drivers/nv50/nv50_shader_state.c')
-rw-r--r--src/gallium/drivers/nv50/nv50_shader_state.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/gallium/drivers/nv50/nv50_shader_state.c b/src/gallium/drivers/nv50/nv50_shader_state.c
index 6c41e8f456..306aa81d98 100644
--- a/src/gallium/drivers/nv50/nv50_shader_state.c
+++ b/src/gallium/drivers/nv50/nv50_shader_state.c
@@ -39,6 +39,9 @@ nv50_transfer_constbuf(struct nv50_context *nv50,
uint32_t *map;
unsigned count, start;
+ if (buf == NULL)
+ return;
+
map = pipe_buffer_map(pipe, buf, PIPE_TRANSFER_READ, &transfer);
if (!map)
return;