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Diffstat (limited to 'src/mesa/swrast/s_stencil.c')
-rw-r--r--src/mesa/swrast/s_stencil.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mesa/swrast/s_stencil.c b/src/mesa/swrast/s_stencil.c
index a8aa1d4b6d..43475c0e81 100644
--- a/src/mesa/swrast/s_stencil.c
+++ b/src/mesa/swrast/s_stencil.c
@@ -1154,7 +1154,7 @@ _swrast_clear_stencil_buffer( GLcontext *ctx, struct gl_renderbuffer *rb )
const GLuint stencilMax = (1 << stencilBits) - 1;
GLint x, y, width, height;
- if (!rb || mask == 0)
+ if (!rb || mask == 0 || !rb->Data)
return;
ASSERT(rb->DataType == GL_UNSIGNED_BYTE ||