drm/msm/dsi: drop modeset sanity checks

Drop the overly defensive modeset sanity checks of function parameters
which have already been checked or used by the callers.

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Tested-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
Reviewed-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/502678/
Link: https://lore.kernel.org/r/20220913085320.8577-11-johan+linaro@kernel.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

diff --git a/drivers/gpu/drm/msm/dsi/dsi.c b/drivers/gpu/drm/msm/dsi/dsi.c
index 8a95c74..31fdee2 100644 (file)
--- a/drivers/gpu/drm/msm/dsi/dsi.c
+++ b/drivers/gpu/drm/msm/dsi/dsi.c
@@ -211,14 +211,9 @@ void __exit msm_dsi_unregister(void)
 int msm_dsi_modeset_init(struct msm_dsi *msm_dsi, struct drm_device *dev,
                         struct drm_encoder *encoder)
 {
-       struct msm_drm_private *priv;
+       struct msm_drm_private *priv = dev->dev_private;
        int ret;
 
-       if (WARN_ON(!encoder) || WARN_ON(!msm_dsi) || WARN_ON(!dev))
-               return -EINVAL;
-
-       priv = dev->dev_private;
-
        if (priv->num_bridges == ARRAY_SIZE(priv->bridges)) {
                DRM_DEV_ERROR(dev->dev, "too many bridges\n");
                return -ENOSPC;