Re: [PATCH 2/3] drm/mediatek: Use dev_err_probe() in probe functions

From: CK Hu (胡俊光)
Date: Tue Jul 04 2023 - 02:52:54 EST

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Hi, Angelo:

On Thu, 2023-06-08 at 12:12 +0200, AngeloGioacchino Del Regno wrote:
>
> External email : Please do not click links or open attachments until
> you have verified the sender or the content.
> Convert all instances of dev_err() -> return to dev_err_probe() and
> where it makes sense to, change instances of `return ret` at the end
> of probe functions to `return 0`, as errors are returned earlier.

Reviewed-by: CK Hu <ck.hu@xxxxxxxxxxxx>

>
> Signed-off-by: AngeloGioacchino Del Regno <
> angelogioacchino.delregno@xxxxxxxxxxxxx>
> ---
> drivers/gpu/drm/mediatek/mtk_cec.c | 26 +++++------------
> drivers/gpu/drm/mediatek/mtk_disp_aal.c | 16 ++++------
> drivers/gpu/drm/mediatek/mtk_disp_ccorr.c | 16 ++++------
> drivers/gpu/drm/mediatek/mtk_disp_color.c | 17 +++++------
> drivers/gpu/drm/mediatek/mtk_disp_gamma.c | 16 ++++------
> drivers/gpu/drm/mediatek/mtk_disp_merge.c | 25 +++++++---------
> drivers/gpu/drm/mediatek/mtk_disp_ovl.c | 23 ++++++---------
> .../gpu/drm/mediatek/mtk_disp_ovl_adaptor.c | 6 ++--
> drivers/gpu/drm/mediatek/mtk_disp_rdma.c | 29 +++++++--------
> ----
> drivers/gpu/drm/mediatek/mtk_dsi.c | 18 +++++-------
> drivers/gpu/drm/mediatek/mtk_ethdr.c | 18 +++++-------
> drivers/gpu/drm/mediatek/mtk_hdmi.c | 14 +++------
> drivers/gpu/drm/mediatek/mtk_hdmi_ddc.c | 12 +++-----
> drivers/gpu/drm/mediatek/mtk_mdp_rdma.c | 18 +++++-------
> 14 files changed, 96 insertions(+), 158 deletions(-)
>
> diff --git a/drivers/gpu/drm/mediatek/mtk_cec.c
> b/drivers/gpu/drm/mediatek/mtk_cec.c
> index 5136aada9023..f12ee86c2b74 100644
> --- a/drivers/gpu/drm/mediatek/mtk_cec.c
> +++ b/drivers/gpu/drm/mediatek/mtk_cec.c
> @@ -196,18 +196,12 @@ static int mtk_cec_probe(struct platform_device
> *pdev)
> spin_lock_init(&cec->lock);
>
> cec->regs = devm_platform_get_and_ioremap_resource(pdev, 0,
> &res);
> - if (IS_ERR(cec->regs)) {
> - ret = PTR_ERR(cec->regs);
> - dev_err(dev, "Failed to ioremap cec: %d\n", ret);
> - return ret;
> - }
> + if (IS_ERR(cec->regs))
> + return dev_err_probe(dev, PTR_ERR(cec->regs), "Failed
> to ioremap cec\n");
>
> cec->clk = devm_clk_get(dev, NULL);
> - if (IS_ERR(cec->clk)) {
> - ret = PTR_ERR(cec->clk);
> - dev_err(dev, "Failed to get cec clock: %d\n", ret);
> - return ret;
> - }
> + if (IS_ERR(cec->clk))
> + return dev_err_probe(dev, PTR_ERR(cec->clk), "Failed to
> get cec clock\n");
>
> cec->irq = platform_get_irq(pdev, 0);
> if (cec->irq < 0)
> @@ -217,16 +211,12 @@ static int mtk_cec_probe(struct platform_device
> *pdev)
> mtk_cec_htplg_isr_thread,
> IRQF_SHARED | IRQF_TRIGGER_LOW
> |
> IRQF_ONESHOT, "hdmi hpd", dev);
> - if (ret) {
> - dev_err(dev, "Failed to register cec irq: %d\n", ret);
> - return ret;
> - }
> + if (ret)
> + return dev_err_probe(dev, ret, "Failed to register cec
> irq\n");
>
> ret = clk_prepare_enable(cec->clk);
> - if (ret) {
> - dev_err(dev, "Failed to enable cec clock: %d\n", ret);
> - return ret;
> - }
> + if (ret)
> + return dev_err_probe(dev, ret, "Failed to enable cec
> clock\n");
>
> mtk_cec_htplg_irq_init(cec);
> mtk_cec_htplg_irq_enable(cec);
> diff --git a/drivers/gpu/drm/mediatek/mtk_disp_aal.c
> b/drivers/gpu/drm/mediatek/mtk_disp_aal.c
> index 68485c09ad8f..17a4d4a3b040 100644
> --- a/drivers/gpu/drm/mediatek/mtk_disp_aal.c
> +++ b/drivers/gpu/drm/mediatek/mtk_disp_aal.c
> @@ -112,16 +112,12 @@ static int mtk_disp_aal_probe(struct
> platform_device *pdev)
> return -ENOMEM;
>
> priv->clk = devm_clk_get(dev, NULL);
> - if (IS_ERR(priv->clk)) {
> - dev_err(dev, "failed to get aal clk\n");
> - return PTR_ERR(priv->clk);
> - }
> + if (IS_ERR(priv->clk))
> + return dev_err_probe(dev, PTR_ERR(priv->clk), "failed
> to get aal clk\n");
>
> priv->regs = devm_platform_get_and_ioremap_resource(pdev, 0,
> &res);
> - if (IS_ERR(priv->regs)) {
> - dev_err(dev, "failed to ioremap aal\n");
> - return PTR_ERR(priv->regs);
> - }
> + if (IS_ERR(priv->regs))
> + return dev_err_probe(dev, PTR_ERR(priv->regs), "failed
> to ioremap aal\n");
>
> #if IS_REACHABLE(CONFIG_MTK_CMDQ)
> ret = cmdq_dev_get_client_reg(dev, &priv->cmdq_reg, 0);
> @@ -134,9 +130,9 @@ static int mtk_disp_aal_probe(struct
> platform_device *pdev)
>
> ret = component_add(dev, &mtk_disp_aal_component_ops);
> if (ret)
> - dev_err(dev, "Failed to add component: %d\n", ret);
> + return dev_err_probe(dev, ret, "Failed to add
> component\n");
>
> - return ret;
> + return 0;
> }
>
> static int mtk_disp_aal_remove(struct platform_device *pdev)
> diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ccorr.c
> b/drivers/gpu/drm/mediatek/mtk_disp_ccorr.c
> index ae243e7db9b2..3f4bf7319f17 100644
> --- a/drivers/gpu/drm/mediatek/mtk_disp_ccorr.c
> +++ b/drivers/gpu/drm/mediatek/mtk_disp_ccorr.c
> @@ -167,16 +167,12 @@ static int mtk_disp_ccorr_probe(struct
> platform_device *pdev)
> return -ENOMEM;
>
> priv->clk = devm_clk_get(dev, NULL);
> - if (IS_ERR(priv->clk)) {
> - dev_err(dev, "failed to get ccorr clk\n");
> - return PTR_ERR(priv->clk);
> - }
> + if (IS_ERR(priv->clk))
> + return dev_err_probe(dev, PTR_ERR(priv->clk), "failed
> to get ccorr clk\n");
>
> priv->regs = devm_platform_get_and_ioremap_resource(pdev, 0,
> &res);
> - if (IS_ERR(priv->regs)) {
> - dev_err(dev, "failed to ioremap ccorr\n");
> - return PTR_ERR(priv->regs);
> - }
> + if (IS_ERR(priv->regs))
> + return dev_err_probe(dev, PTR_ERR(priv->regs), "failed
> to ioremap ccorr\n");
>
> #if IS_REACHABLE(CONFIG_MTK_CMDQ)
> ret = cmdq_dev_get_client_reg(dev, &priv->cmdq_reg, 0);
> @@ -189,9 +185,9 @@ static int mtk_disp_ccorr_probe(struct
> platform_device *pdev)
>
> ret = component_add(dev, &mtk_disp_ccorr_component_ops);
> if (ret)
> - dev_err(dev, "Failed to add component: %d\n", ret);
> + return dev_err_probe(dev, ret, "Failed to add
> component\n");
>
> - return ret;
> + return 0;
> }
>
> static int mtk_disp_ccorr_remove(struct platform_device *pdev)
> diff --git a/drivers/gpu/drm/mediatek/mtk_disp_color.c
> b/drivers/gpu/drm/mediatek/mtk_disp_color.c
> index 4ec37e20ade9..b188d3393f99 100644
> --- a/drivers/gpu/drm/mediatek/mtk_disp_color.c
> +++ b/drivers/gpu/drm/mediatek/mtk_disp_color.c
> @@ -105,16 +105,13 @@ static int mtk_disp_color_probe(struct
> platform_device *pdev)
> return -ENOMEM;
>
> priv->clk = devm_clk_get(dev, NULL);
> - if (IS_ERR(priv->clk)) {
> - dev_err(dev, "failed to get color clk\n");
> - return PTR_ERR(priv->clk);
> - }
> + if (IS_ERR(priv->clk))
> + return dev_err_probe(dev, PTR_ERR(priv->clk), "failed
> to get color clk\n");
>
> priv->regs = devm_platform_get_and_ioremap_resource(pdev, 0,
> &res);
> - if (IS_ERR(priv->regs)) {
> - dev_err(dev, "failed to ioremap color\n");
> - return PTR_ERR(priv->regs);
> - }
> + if (IS_ERR(priv->regs))
> + return dev_err_probe(dev, PTR_ERR(priv->regs), "failed
> to ioremap color\n");
> +
> #if IS_REACHABLE(CONFIG_MTK_CMDQ)
> ret = cmdq_dev_get_client_reg(dev, &priv->cmdq_reg, 0);
> if (ret)
> @@ -126,9 +123,9 @@ static int mtk_disp_color_probe(struct
> platform_device *pdev)
>
> ret = component_add(dev, &mtk_disp_color_component_ops);
> if (ret)
> - dev_err(dev, "Failed to add component: %d\n", ret);
> + return dev_err_probe(dev, ret, "Failed to add
> component\n");
>
> - return ret;
> + return 0;
> }
>
> static int mtk_disp_color_remove(struct platform_device *pdev)
> diff --git a/drivers/gpu/drm/mediatek/mtk_disp_gamma.c
> b/drivers/gpu/drm/mediatek/mtk_disp_gamma.c
> index cf9262aa4f89..1bf709bac0cf 100644
> --- a/drivers/gpu/drm/mediatek/mtk_disp_gamma.c
> +++ b/drivers/gpu/drm/mediatek/mtk_disp_gamma.c
> @@ -271,16 +271,12 @@ static int mtk_disp_gamma_probe(struct
> platform_device *pdev)
> return -ENOMEM;
>
> priv->clk = devm_clk_get(dev, NULL);
> - if (IS_ERR(priv->clk)) {
> - dev_err(dev, "failed to get gamma clk\n");
> - return PTR_ERR(priv->clk);
> - }
> + if (IS_ERR(priv->clk))
> + return dev_err_probe(dev, PTR_ERR(priv->clk), "failed
> to get gamma clk\n");
>
> priv->regs = devm_platform_get_and_ioremap_resource(pdev, 0,
> &res);
> - if (IS_ERR(priv->regs)) {
> - dev_err(dev, "failed to ioremap gamma\n");
> - return PTR_ERR(priv->regs);
> - }
> + if (IS_ERR(priv->regs))
> + return dev_err_probe(dev, PTR_ERR(priv->regs), "failed
> to ioremap gamma\n");
>
> #if IS_REACHABLE(CONFIG_MTK_CMDQ)
> ret = cmdq_dev_get_client_reg(dev, &priv->cmdq_reg, 0);
> @@ -293,9 +289,9 @@ static int mtk_disp_gamma_probe(struct
> platform_device *pdev)
>
> ret = component_add(dev, &mtk_disp_gamma_component_ops);
> if (ret)
> - dev_err(dev, "Failed to add component: %d\n", ret);
> + return dev_err_probe(dev, ret, "Failed to add
> component\n");
>
> - return ret;
> + return 0;
> }
>
> static int mtk_disp_gamma_remove(struct platform_device *pdev)
> diff --git a/drivers/gpu/drm/mediatek/mtk_disp_merge.c
> b/drivers/gpu/drm/mediatek/mtk_disp_merge.c
> index f1dfa6dfd967..60e0b4e70978 100644
> --- a/drivers/gpu/drm/mediatek/mtk_disp_merge.c
> +++ b/drivers/gpu/drm/mediatek/mtk_disp_merge.c
> @@ -251,22 +251,17 @@ static int mtk_disp_merge_probe(struct
> platform_device *pdev)
> return -ENOMEM;
>
> priv->regs = devm_platform_get_and_ioremap_resource(pdev, 0,
> &res);
> - if (IS_ERR(priv->regs)) {
> - dev_err(dev, "failed to ioremap merge\n");
> - return PTR_ERR(priv->regs);
> - }
> + if (IS_ERR(priv->regs))
> + return dev_err_probe(dev, PTR_ERR(priv->regs), "failed
> to ioremap merge\n");
>
> priv->clk = devm_clk_get(dev, NULL);
> - if (IS_ERR(priv->clk)) {
> - dev_err(dev, "failed to get merge clk\n");
> - return PTR_ERR(priv->clk);
> - }
> + if (IS_ERR(priv->clk))
> + return dev_err_probe(dev, PTR_ERR(priv->clk), "failed
> to get merge clock\n");
>
> priv->async_clk = devm_clk_get_optional(dev, "merge_async");
> - if (IS_ERR(priv->async_clk)) {
> - dev_err(dev, "failed to get merge async clock\n");
> - return PTR_ERR(priv->async_clk);
> - }
> + if (IS_ERR(priv->async_clk))
> + return dev_err_probe(dev, PTR_ERR(priv->async_clk),
> + "failed to get merge_async
> clock\n");
>
> if (priv->async_clk) {
> priv->reset_ctl =
> devm_reset_control_get_optional_exclusive(dev, NULL);
> @@ -288,10 +283,10 @@ static int mtk_disp_merge_probe(struct
> platform_device *pdev)
> platform_set_drvdata(pdev, priv);
>
> ret = component_add(dev, &mtk_disp_merge_component_ops);
> - if (ret != 0)
> - dev_err(dev, "Failed to add component: %d\n", ret);
> + if (ret)
> + return dev_err_probe(dev, ret, "Failed to add
> component\n");
>
> - return ret;
> + return 0;
> }
>
> static int mtk_disp_merge_remove(struct platform_device *pdev)
> diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
> b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
> index a0b0a1eb91c9..4c00e42ef0a8 100644
> --- a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
> +++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
> @@ -524,16 +524,13 @@ static int mtk_disp_ovl_probe(struct
> platform_device *pdev)
> return irq;
>
> priv->clk = devm_clk_get(dev, NULL);
> - if (IS_ERR(priv->clk)) {
> - dev_err(dev, "failed to get ovl clk\n");
> - return PTR_ERR(priv->clk);
> - }
> + if (IS_ERR(priv->clk))
> + return dev_err_probe(dev, PTR_ERR(priv->clk), "failed
> to get ovl clk\n");
>
> priv->regs = devm_platform_get_and_ioremap_resource(pdev, 0,
> &res);
> - if (IS_ERR(priv->regs)) {
> - dev_err(dev, "failed to ioremap ovl\n");
> - return PTR_ERR(priv->regs);
> - }
> + if (IS_ERR(priv->regs))
> + return dev_err_probe(dev, PTR_ERR(priv->regs), "failed
> to ioremap ovl\n");
> +
> #if IS_REACHABLE(CONFIG_MTK_CMDQ)
> ret = cmdq_dev_get_client_reg(dev, &priv->cmdq_reg, 0);
> if (ret)
> @@ -545,20 +542,18 @@ static int mtk_disp_ovl_probe(struct
> platform_device *pdev)
>
> ret = devm_request_irq(dev, irq, mtk_disp_ovl_irq_handler,
> IRQF_TRIGGER_NONE, dev_name(dev), priv);
> - if (ret < 0) {
> - dev_err(dev, "Failed to request irq %d: %d\n", irq,
> ret);
> - return ret;
> - }
> + if (ret < 0)
> + return dev_err_probe(dev, ret, "Failed to request irq
> %d\n", irq);
>
> pm_runtime_enable(dev);
>
> ret = component_add(dev, &mtk_disp_ovl_component_ops);
> if (ret) {
> pm_runtime_disable(dev);
> - dev_err(dev, "Failed to add component: %d\n", ret);
> + return dev_err_probe(dev, ret, "Failed to add
> component\n");
> }
>
> - return ret;
> + return 0;
> }
>
> static int mtk_disp_ovl_remove(struct platform_device *pdev)
> diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c
> b/drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c
> index c0a38f5217ee..1993b688befa 100644
> --- a/drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c
> +++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c
> @@ -522,12 +522,12 @@ static int mtk_disp_ovl_adaptor_probe(struct
> platform_device *pdev)
> pm_runtime_enable(dev);
>
> ret = component_add(dev, &mtk_disp_ovl_adaptor_comp_ops);
> - if (ret != 0) {
> + if (ret) {
> pm_runtime_disable(dev);
> - dev_err(dev, "Failed to add component: %d\n", ret);
> + return dev_err_probe(dev, ret, "Failed to add
> component\n");
> }
>
> - return ret;
> + return 0;
> }
>
> static int mtk_disp_ovl_adaptor_remove(struct platform_device *pdev)
> diff --git a/drivers/gpu/drm/mediatek/mtk_disp_rdma.c
> b/drivers/gpu/drm/mediatek/mtk_disp_rdma.c
> index 7106c05127b1..307be35b59fc 100644
> --- a/drivers/gpu/drm/mediatek/mtk_disp_rdma.c
> +++ b/drivers/gpu/drm/mediatek/mtk_disp_rdma.c
> @@ -327,16 +327,13 @@ static int mtk_disp_rdma_probe(struct
> platform_device *pdev)
> return irq;
>
> priv->clk = devm_clk_get(dev, NULL);
> - if (IS_ERR(priv->clk)) {
> - dev_err(dev, "failed to get rdma clk\n");
> - return PTR_ERR(priv->clk);
> - }
> + if (IS_ERR(priv->clk))
> + return dev_err_probe(dev, PTR_ERR(priv->clk), "failed
> to get rdma clk\n");
>
> priv->regs = devm_platform_get_and_ioremap_resource(pdev, 0,
> &res);
> - if (IS_ERR(priv->regs)) {
> - dev_err(dev, "failed to ioremap rdma\n");
> - return PTR_ERR(priv->regs);
> - }
> + if (IS_ERR(priv->regs))
> + return dev_err_probe(dev, PTR_ERR(priv->regs), "failed
> to ioremap rdma\n");
> +
> #if IS_REACHABLE(CONFIG_MTK_CMDQ)
> ret = cmdq_dev_get_client_reg(dev, &priv->cmdq_reg, 0);
> if (ret)
> @@ -347,10 +344,8 @@ static int mtk_disp_rdma_probe(struct
> platform_device *pdev)
> ret = of_property_read_u32(dev->of_node,
> "mediatek,rdma-fifo-size",
> &priv->fifo_size);
> - if (ret) {
> - dev_err(dev, "Failed to get rdma fifo size\n");
> - return ret;
> - }
> + if (ret)
> + return dev_err_probe(dev, ret, "Failed to get
> rdma fifo size\n");
> }
>
> /* Disable and clear pending interrupts */
> @@ -359,10 +354,8 @@ static int mtk_disp_rdma_probe(struct
> platform_device *pdev)
>
> ret = devm_request_irq(dev, irq, mtk_disp_rdma_irq_handler,
> IRQF_TRIGGER_NONE, dev_name(dev), priv);
> - if (ret < 0) {
> - dev_err(dev, "Failed to request irq %d: %d\n", irq,
> ret);
> - return ret;
> - }
> + if (ret < 0)
> + return dev_err_probe(dev, ret, "Failed to request irq
> %d\n", irq);
>
> priv->data = of_device_get_match_data(dev);
>
> @@ -373,10 +366,10 @@ static int mtk_disp_rdma_probe(struct
> platform_device *pdev)
> ret = component_add(dev, &mtk_disp_rdma_component_ops);
> if (ret) {
> pm_runtime_disable(dev);
> - dev_err(dev, "Failed to add component: %d\n", ret);
> + return dev_err_probe(dev, ret, "Failed to add
> component\n");
> }
>
> - return ret;
> + return 0;
> }
>
> static int mtk_disp_rdma_remove(struct platform_device *pdev)
> diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c
> b/drivers/gpu/drm/mediatek/mtk_dsi.c
> index fb6f45165e95..fc8149e0ae3d 100644
> --- a/drivers/gpu/drm/mediatek/mtk_dsi.c
> +++ b/drivers/gpu/drm/mediatek/mtk_dsi.c
> @@ -1081,10 +1081,8 @@ static int mtk_dsi_probe(struct
> platform_device *pdev)
> dsi->host.ops = &mtk_dsi_ops;
> dsi->host.dev = dev;
> ret = mipi_dsi_host_register(&dsi->host);
> - if (ret < 0) {
> - dev_err(dev, "failed to register DSI host: %d\n", ret);
> - return ret;
> - }
> + if (ret < 0)
> + return dev_err_probe(dev, ret, "failed to register DSI
> host\n");
>
> dsi->driver_data = of_device_get_match_data(dev);
>
> @@ -1092,8 +1090,7 @@ static int mtk_dsi_probe(struct platform_device
> *pdev)
> if (IS_ERR(dsi->engine_clk)) {
> ret = PTR_ERR(dsi->engine_clk);
>
> - if (ret != -EPROBE_DEFER)
> - dev_err(dev, "Failed to get engine clock:
> %d\n", ret);
> + dev_err_probe(dev, ret, "Failed to get engine
> clock\n");
> goto err_unregister_host;
> }
>
> @@ -1101,29 +1098,28 @@ static int mtk_dsi_probe(struct
> platform_device *pdev)
> if (IS_ERR(dsi->digital_clk)) {
> ret = PTR_ERR(dsi->digital_clk);
>
> - if (ret != -EPROBE_DEFER)
> - dev_err(dev, "Failed to get digital clock:
> %d\n", ret);
> + dev_err_probe(dev, ret, "Failed to get digital
> clock\n");
> goto err_unregister_host;
> }
>
> dsi->hs_clk = devm_clk_get(dev, "hs");
> if (IS_ERR(dsi->hs_clk)) {
> ret = PTR_ERR(dsi->hs_clk);
> - dev_err(dev, "Failed to get hs clock: %d\n", ret);
> + dev_err_probe(dev, ret, "Failed to get hs clock\n");
> goto err_unregister_host;
> }
>
> dsi->regs = devm_platform_get_and_ioremap_resource(pdev, 0,
> &regs);
> if (IS_ERR(dsi->regs)) {
> ret = PTR_ERR(dsi->regs);
> - dev_err(dev, "Failed to ioremap memory: %d\n", ret);
> + dev_err_probe(dev, ret, "Failed to ioremap memory\n");
> goto err_unregister_host;
> }
>
> dsi->phy = devm_phy_get(dev, "dphy");
> if (IS_ERR(dsi->phy)) {
> ret = PTR_ERR(dsi->phy);
> - dev_err(dev, "Failed to get MIPI-DPHY: %d\n", ret);
> + dev_err_probe(dev, ret, "Failed to get MIPI-DPHY\n");
> goto err_unregister_host;
> }
>
> diff --git a/drivers/gpu/drm/mediatek/mtk_ethdr.c
> b/drivers/gpu/drm/mediatek/mtk_ethdr.c
> index 73dc4da3ba3b..4a5bd5bb9d6e 100644
> --- a/drivers/gpu/drm/mediatek/mtk_ethdr.c
> +++ b/drivers/gpu/drm/mediatek/mtk_ethdr.c
> @@ -325,25 +325,23 @@ static int mtk_ethdr_probe(struct
> platform_device *pdev)
> if (priv->irq) {
> ret = devm_request_irq(dev, priv->irq,
> mtk_ethdr_irq_handler,
> IRQF_TRIGGER_NONE,
> dev_name(dev), priv);
> - if (ret < 0) {
> - dev_err(dev, "Failed to request irq %d: %d\n",
> priv->irq, ret);
> - return ret;
> - }
> + if (ret < 0)
> + return dev_err_probe(dev, ret, "Failed to
> request irq %d\n",
> + priv->irq);
> }
>
> priv->reset_ctl =
> devm_reset_control_array_get_optional_exclusive(dev);
> - if (IS_ERR(priv->reset_ctl)) {
> - dev_err_probe(dev, PTR_ERR(priv->reset_ctl), "cannot
> get ethdr reset control\n");
> - return PTR_ERR(priv->reset_ctl);
> - }
> + if (IS_ERR(priv->reset_ctl))
> + return dev_err_probe(dev, PTR_ERR(priv->reset_ctl),
> + "cannot get ethdr reset
> control\n");
>
> platform_set_drvdata(pdev, priv);
>
> ret = component_add(dev, &mtk_ethdr_component_ops);
> if (ret)
> - dev_notice(dev, "Failed to add component: %d\n", ret);
> + return dev_err_probe(dev, ret, "Failed to add
> component\n");
>
> - return ret;
> + return 0;
> }
>
> static int mtk_ethdr_remove(struct platform_device *pdev)
> diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi.c
> b/drivers/gpu/drm/mediatek/mtk_hdmi.c
> index 0c784db9978b..7066c70d7eaf 100644
> --- a/drivers/gpu/drm/mediatek/mtk_hdmi.c
> +++ b/drivers/gpu/drm/mediatek/mtk_hdmi.c
> @@ -1432,19 +1432,13 @@ static int mtk_hdmi_dt_parse_pdata(struct
> mtk_hdmi *hdmi,
> int ret;
>
> ret = mtk_hdmi_get_all_clk(hdmi, np);
> - if (ret) {
> - if (ret != -EPROBE_DEFER)
> - dev_err(dev, "Failed to get clocks: %d\n",
> ret);
> -
> - return ret;
> - }
> + if (ret)
> + return dev_err_probe(dev, ret, "Failed to get
> clocks\n");
>
> /* The CEC module handles HDMI hotplug detection */
> cec_np = of_get_compatible_child(np->parent, "mediatek,mt8173-
> cec");
> - if (!cec_np) {
> - dev_err(dev, "Failed to find CEC node\n");
> - return -EINVAL;
> - }
> + if (!cec_np)
> + return dev_err_probe(dev, -EINVAL, "Failed to find CEC
> node\n");
>
> cec_pdev = of_find_device_by_node(cec_np);
> if (!cec_pdev) {
> diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi_ddc.c
> b/drivers/gpu/drm/mediatek/mtk_hdmi_ddc.c
> index dfd1f07b39f0..e4bfef13e0e5 100644
> --- a/drivers/gpu/drm/mediatek/mtk_hdmi_ddc.c
> +++ b/drivers/gpu/drm/mediatek/mtk_hdmi_ddc.c
> @@ -279,20 +279,16 @@ static int mtk_hdmi_ddc_probe(struct
> platform_device *pdev)
> return -ENOMEM;
>
> ddc->clk = devm_clk_get(dev, "ddc-i2c");
> - if (IS_ERR(ddc->clk)) {
> - dev_err(dev, "get ddc_clk failed: %p ,\n", ddc->clk);
> - return PTR_ERR(ddc->clk);
> - }
> + if (IS_ERR(ddc->clk))
> + return dev_err_probe(dev, PTR_ERR(ddc->clk), "get
> ddc_clk failed\n");
>
> ddc->regs = devm_platform_get_and_ioremap_resource(pdev, 0,
> &mem);
> if (IS_ERR(ddc->regs))
> return PTR_ERR(ddc->regs);
>
> ret = clk_prepare_enable(ddc->clk);
> - if (ret) {
> - dev_err(dev, "enable ddc clk failed!\n");
> - return ret;
> - }
> + if (ret)
> + return dev_err_probe(dev, ret, "enable ddc clk
> failed!\n");
>
> strscpy(ddc->adap.name, "mediatek-hdmi-ddc", sizeof(ddc-
> >adap.name));
> ddc->adap.owner = THIS_MODULE;
> diff --git a/drivers/gpu/drm/mediatek/mtk_mdp_rdma.c
> b/drivers/gpu/drm/mediatek/mtk_mdp_rdma.c
> index 4eac4cbc0764..ed519b5a3273 100644
> --- a/drivers/gpu/drm/mediatek/mtk_mdp_rdma.c
> +++ b/drivers/gpu/drm/mediatek/mtk_mdp_rdma.c
> @@ -286,16 +286,12 @@ static int mtk_mdp_rdma_probe(struct
> platform_device *pdev)
> return -ENOMEM;
>
> priv->regs = devm_platform_get_and_ioremap_resource(pdev, 0,
> &res);
> - if (IS_ERR(priv->regs)) {
> - dev_err(dev, "failed to ioremap rdma\n");
> - return PTR_ERR(priv->regs);
> - }
> + if (IS_ERR(priv->regs))
> + return dev_err_probe(dev, PTR_ERR(priv->regs), "failed
> to ioremap rdma\n");
>
> priv->clk = devm_clk_get(dev, NULL);
> - if (IS_ERR(priv->clk)) {
> - dev_err(dev, "failed to get rdma clk\n");
> - return PTR_ERR(priv->clk);
> - }
> + if (IS_ERR(priv->clk))
> + return dev_err_probe(dev, PTR_ERR(priv->clk), "failed
> to get rdma clk\n");
>
> #if IS_REACHABLE(CONFIG_MTK_CMDQ)
> ret = cmdq_dev_get_client_reg(dev, &priv->cmdq_reg, 0);
> @@ -307,11 +303,11 @@ static int mtk_mdp_rdma_probe(struct
> platform_device *pdev)
> pm_runtime_enable(dev);
>
> ret = component_add(dev, &mtk_mdp_rdma_component_ops);
> - if (ret != 0) {
> + if (ret) {
> pm_runtime_disable(dev);
> - dev_err(dev, "Failed to add component: %d\n", ret);
> + return dev_err_probe(dev, ret, "Failed to add
> component\n");
> }
> - return ret;
> + return 0;
> }
>
> static int mtk_mdp_rdma_remove(struct platform_device *pdev)
> --
> 2.40.1

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