[PATCH -next] drm/virtio: Remove set but not used variable 'bo'

[YueHaibing]

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/gpu/drm/virtio/virtgpu_display.c: In function 
'virtio_gpu_framebuffer_init':
drivers/gpu/drm/virtio/virtgpu_display.c:78:28: warning:
 variable 'bo' set but not used [-Wunused-but-set-variable]
  struct virtio_gpu_object *bo;
                            ^

Signed-off-by: YueHaibing <yuehaib...@huawei.com>
---
 drivers/gpu/drm/virtio/virtgpu_display.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/gpu/drm/virtio/virtgpu_display.c 
b/drivers/gpu/drm/virtio/virtgpu_display.c
index 9f1e0a6..0379d68 100644
--- a/drivers/gpu/drm/virtio/virtgpu_display.c
+++ b/drivers/gpu/drm/virtio/virtgpu_display.c
@@ -75,12 +75,9 @@
                            struct drm_gem_object *obj)
 {
        int ret;
-       struct virtio_gpu_object *bo;
 
        vgfb->base.obj[0] = obj;
 
-       bo = gem_to_virtio_gpu_obj(obj);
-
        drm_helper_mode_fill_fb_struct(dev, &vgfb->base, mode_cmd);
 
        ret = drm_framebuffer_init(dev, &vgfb->base, &virtio_gpu_fb_funcs);



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