Removed all impossible checks from the function, which eliminates the need for a return value. This function is also never used outside of dpu_plane.c, so the function is made static. Signed-off-by: Bruce Wang <bzwang@xxxxxxxxxxxx> --- drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c | 27 +++++------------------ 1 file changed, 5 insertions(+), 22 deletions(-) diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c index 9a5d5afa53f2..f9e65acdf87e 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c @@ -363,35 +363,18 @@ static void _dpu_plane_set_qos_ctrl(struct drm_plane *plane, &pdpu->pipe_qos_cfg); } -int dpu_plane_danger_signal_ctrl(struct drm_plane *plane, bool enable) +static void dpu_plane_danger_signal_ctrl(struct drm_plane *plane, bool enable) { - struct dpu_plane *pdpu; - struct msm_drm_private *priv; - struct dpu_kms *dpu_kms; - - if (!plane || !plane->dev) { - DPU_ERROR("invalid arguments\n"); - return -EINVAL; - } - - priv = plane->dev->dev_private; - if (!priv || !priv->kms) { - DPU_ERROR("invalid KMS reference\n"); - return -EINVAL; - } - - dpu_kms = to_dpu_kms(priv->kms); - pdpu = to_dpu_plane(plane); + struct dpu_plane *pdpu = to_dpu_plane(plane); + struct msm_drm_private *priv = plane->dev->dev_private; + struct dpu_kms *dpu_kms = to_dpu_kms(priv->kms); if (!pdpu->is_rt_pipe) - goto end; + return; pm_runtime_get_sync(&dpu_kms->pdev->dev); _dpu_plane_set_qos_ctrl(plane, enable, DPU_PLANE_QOS_PANIC_CTRL); pm_runtime_put_sync(&dpu_kms->pdev->dev); - -end: - return 0; } /** -- 2.19.0.444.g18242da7ef-goog