From 95478b0828752d5b91fe5a94f44d5713e4980599 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Fri, 15 Sep 2023 10:53:31 +0200 Subject: [PATCH] drm: renesas: shmobile: Improve error handling Prepare for DT conversion, where panel probe can be deferred, by streamlining error propagation and handling: - Use dev_err_probe() to avoid printing error messages in case of probe deferral, - Propagate errors where needed. Reviewed-by: Laurent Pinchart Signed-off-by: Geert Uytterhoeven Link: https://lore.kernel.org/r/6dfac76e5b1c7dda3f96801ce83845a4235e2ccd.1694767209.git.geert+renesas@glider.be --- drivers/gpu/drm/renesas/shmobile/shmob_drm_drv.c | 3 ++- drivers/gpu/drm/renesas/shmobile/shmob_drm_kms.c | 14 +++++++++++--- 2 files changed, 13 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/renesas/shmobile/shmob_drm_drv.c b/drivers/gpu/drm/renesas/shmobile/shmob_drm_drv.c index 9c3d8b3cf57d..399fedd42271 100644 --- a/drivers/gpu/drm/renesas/shmobile/shmob_drm_drv.c +++ b/drivers/gpu/drm/renesas/shmobile/shmob_drm_drv.c @@ -253,7 +253,8 @@ static int shmob_drm_probe(struct platform_device *pdev) ret = shmob_drm_modeset_init(sdev); if (ret < 0) { - dev_err(&pdev->dev, "failed to initialize mode setting\n"); + dev_err_probe(&pdev->dev, ret, + "failed to initialize mode setting\n"); goto err_free_drm_dev; } diff --git a/drivers/gpu/drm/renesas/shmobile/shmob_drm_kms.c b/drivers/gpu/drm/renesas/shmobile/shmob_drm_kms.c index 3051318ddc79..1a62e7f8a8a9 100644 --- a/drivers/gpu/drm/renesas/shmobile/shmob_drm_kms.c +++ b/drivers/gpu/drm/renesas/shmobile/shmob_drm_kms.c @@ -157,9 +157,17 @@ int shmob_drm_modeset_init(struct shmob_drm_device *sdev) if (ret) return ret; - shmob_drm_crtc_create(sdev); - shmob_drm_encoder_create(sdev); - shmob_drm_connector_create(sdev, &sdev->encoder); + ret = shmob_drm_crtc_create(sdev); + if (ret < 0) + return ret; + + ret = shmob_drm_encoder_create(sdev); + if (ret < 0) + return ret; + + ret = shmob_drm_connector_create(sdev, &sdev->encoder); + if (ret < 0) + return ret; drm_kms_helper_poll_init(sdev->ddev); -- 2.25.1