[PATCH] drm/virtgpu: Use ERR_PTR for fb_create callback error return

[liuqiangneo]

From: Qiang Liu <liuqi...@kylinos.cn>

The fb_create callback returns an error code encoded with ERR_PTR()
on failure. This lets the caller see the actual error code instead of
just a generic failure.

Signed-off-by: Qiang Liu <liuqi...@kylinos.cn>
---
 drivers/gpu/drm/virtio/virtgpu_display.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/virtio/virtgpu_display.c 
b/drivers/gpu/drm/virtio/virtgpu_display.c
index 44ffffec550f..85ea252c658e 100644
--- a/drivers/gpu/drm/virtio/virtgpu_display.c
+++ b/drivers/gpu/drm/virtio/virtgpu_display.c
@@ -344,7 +344,7 @@ virtio_gpu_user_framebuffer_create(struct drm_device *dev,
        if (ret) {
                kfree(virtio_gpu_fb);
                drm_gem_object_put(obj);
-               return NULL;
+               return ERR_PTR(ret);
        }
 
        return &virtio_gpu_fb->base;
-- 
2.43.0