Re: [PATCH] mmc: host: Remove redundant dev_err()/dev_err_probe()
From: Adrian Hunter
Date: Tue Jul 21 2026 - 06:24:38 EST
On 17/07/2026 13:14, Pan Chuang wrote:
> Since commit 55b48e23f5c4 ("genirq/devres: Add error handling in
> devm_request_*_irq()"), devm_request_irq() and devm_request_threaded_irq()
> automatically log detailed error messages on failure. Remove the
> now-redundant driver-specific dev_err() and dev_err_probe() calls.
>
> Signed-off-by: Pan Chuang <panchuang@xxxxxxxx>
Reviewed-by: Adrian Hunter <adrian.hunter@xxxxxxxxx>
> ---
> drivers/mmc/host/alcor.c | 3 +--
> drivers/mmc/host/cavium-octeon.c | 10 ++--------
> drivers/mmc/host/meson-mx-sdio.c | 5 +----
> drivers/mmc/host/mvsdio.c | 4 +---
> drivers/mmc/host/omap_hsmmc.c | 4 +---
> drivers/mmc/host/owl-mmc.c | 5 +----
> drivers/mmc/host/sdhci-msm.c | 4 +---
> drivers/mmc/host/sh_mmcif.c | 8 ++------
> 8 files changed, 10 insertions(+), 33 deletions(-)
>
> diff --git a/drivers/mmc/host/alcor.c b/drivers/mmc/host/alcor.c
> index 721db54739c1..45528909a758 100644
> --- a/drivers/mmc/host/alcor.c
> +++ b/drivers/mmc/host/alcor.c
> @@ -1103,8 +1103,7 @@ static int alcor_pci_sdmmc_drv_probe(struct platform_device *pdev)
> alcor_irq, alcor_irq_thread, IRQF_SHARED,
> DRV_NAME_ALCOR_PCI_SDMMC, host);
> if (ret)
> - return dev_err_probe(&pdev->dev, ret,
> - "Failed to get irq for data line\n");
> + return ret;
>
> mutex_init(&host->cmd_mutex);
> INIT_DELAYED_WORK(&host->timeout_work, alcor_timeout_timer);
> diff --git a/drivers/mmc/host/cavium-octeon.c b/drivers/mmc/host/cavium-octeon.c
> index 8a0daddd9200..1bfc1a4f9fe9 100644
> --- a/drivers/mmc/host/cavium-octeon.c
> +++ b/drivers/mmc/host/cavium-octeon.c
> @@ -240,21 +240,15 @@ static int octeon_mmc_probe(struct platform_device *pdev)
> ret = devm_request_irq(&pdev->dev, mmc_irq[i],
> cvm_mmc_interrupt,
> 0, cvm_mmc_irq_names[i], host);
> - if (ret < 0) {
> - dev_err(&pdev->dev, "Error: devm_request_irq %d\n",
> - mmc_irq[i]);
> + if (ret < 0)
> return ret;
> - }
> }
> } else {
> ret = devm_request_irq(&pdev->dev, mmc_irq[0],
> cvm_mmc_interrupt, 0, KBUILD_MODNAME,
> host);
> - if (ret < 0) {
> - dev_err(&pdev->dev, "Error: devm_request_irq %d\n",
> - mmc_irq[0]);
> + if (ret < 0)
> return ret;
> - }
> }
>
> host->global_pwr_gpiod = devm_gpiod_get_optional(&pdev->dev,
> diff --git a/drivers/mmc/host/meson-mx-sdio.c b/drivers/mmc/host/meson-mx-sdio.c
> index 5921e2cb2180..bef5e843f449 100644
> --- a/drivers/mmc/host/meson-mx-sdio.c
> +++ b/drivers/mmc/host/meson-mx-sdio.c
> @@ -683,11 +683,8 @@ static int meson_mx_mmc_probe(struct platform_device *pdev)
> meson_mx_mmc_irq,
> meson_mx_mmc_irq_thread, IRQF_ONESHOT,
> NULL, host);
> - if (ret) {
> - dev_err_probe(host->controller_dev, ret,
> - "Failed to request IRQ\n");
> + if (ret)
> goto error_unregister_slot_pdev;
> - }
>
> core_clk = devm_clk_get_enabled(host->controller_dev, "core");
> if (IS_ERR(core_clk)) {
> diff --git a/drivers/mmc/host/mvsdio.c b/drivers/mmc/host/mvsdio.c
> index 79df2fa89a3f..cf705b265e21 100644
> --- a/drivers/mmc/host/mvsdio.c
> +++ b/drivers/mmc/host/mvsdio.c
> @@ -764,10 +764,8 @@ static int mvsd_probe(struct platform_device *pdev)
> mvsd_power_down(host);
>
> ret = devm_request_irq(&pdev->dev, irq, mvsd_irq, 0, DRIVER_NAME, host);
> - if (ret) {
> - dev_err(&pdev->dev, "cannot assign irq %d\n", irq);
> + if (ret)
> goto out;
> - }
>
> timer_setup(&host->timer, mvsd_timeout_timer, 0);
> platform_set_drvdata(pdev, mmc);
> diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
> index 58c881f2725b..63a9fb970975 100644
> --- a/drivers/mmc/host/omap_hsmmc.c
> +++ b/drivers/mmc/host/omap_hsmmc.c
> @@ -1915,10 +1915,8 @@ static int omap_hsmmc_probe(struct platform_device *pdev)
> /* Request IRQ for MMC operations */
> ret = devm_request_irq(&pdev->dev, host->irq, omap_hsmmc_irq, 0,
> mmc_hostname(mmc), host);
> - if (ret) {
> - dev_err(mmc_dev(host->mmc), "Unable to grab HSMMC IRQ\n");
> + if (ret)
> goto err_irq;
> - }
>
> ret = omap_hsmmc_reg_get(host);
> if (ret)
> diff --git a/drivers/mmc/host/owl-mmc.c b/drivers/mmc/host/owl-mmc.c
> index 349082d76a99..d5b8a110267b 100644
> --- a/drivers/mmc/host/owl-mmc.c
> +++ b/drivers/mmc/host/owl-mmc.c
> @@ -635,11 +635,8 @@ static int owl_mmc_probe(struct platform_device *pdev)
>
> ret = devm_request_irq(&pdev->dev, owl_host->irq, owl_irq_handler,
> 0, dev_name(&pdev->dev), owl_host);
> - if (ret) {
> - dev_err(&pdev->dev, "Failed to request irq %d\n",
> - owl_host->irq);
> + if (ret)
> goto err_release_channel;
> - }
>
> ret = mmc_add_host(mmc);
> if (ret) {
> diff --git a/drivers/mmc/host/sdhci-msm.c b/drivers/mmc/host/sdhci-msm.c
> index ceed47ccfda8..4aff965f0e2e 100644
> --- a/drivers/mmc/host/sdhci-msm.c
> +++ b/drivers/mmc/host/sdhci-msm.c
> @@ -2864,10 +2864,8 @@ static int sdhci_msm_probe(struct platform_device *pdev)
> ret = devm_request_threaded_irq(&pdev->dev, msm_host->pwr_irq, NULL,
> sdhci_msm_pwr_irq, IRQF_ONESHOT,
> dev_name(&pdev->dev), host);
> - if (ret) {
> - dev_err(&pdev->dev, "Request IRQ failed (%d)\n", ret);
> + if (ret)
> goto clk_disable;
> - }
>
> msm_host->mmc->caps |= MMC_CAP_WAIT_WHILE_BUSY | MMC_CAP_NEED_RSP_BUSY;
>
> diff --git a/drivers/mmc/host/sh_mmcif.c b/drivers/mmc/host/sh_mmcif.c
> index 9831956de1c8..7706d01b149e 100644
> --- a/drivers/mmc/host/sh_mmcif.c
> +++ b/drivers/mmc/host/sh_mmcif.c
> @@ -1505,18 +1505,14 @@ static int sh_mmcif_probe(struct platform_device *pdev)
> name = irq[1] < 0 ? dev_name(dev) : "sh_mmc:error";
> ret = devm_request_threaded_irq(dev, irq[0], sh_mmcif_intr,
> sh_mmcif_irqt, 0, name, host);
> - if (ret) {
> - dev_err(dev, "request_irq error (%s)\n", name);
> + if (ret)
> goto err_clk;
> - }
> if (irq[1] >= 0) {
> ret = devm_request_threaded_irq(dev, irq[1],
> sh_mmcif_intr, sh_mmcif_irqt,
> 0, "sh_mmc:int", host);
> - if (ret) {
> - dev_err(dev, "request_irq error (sh_mmc:int)\n");
> + if (ret)
> goto err_clk;
> - }
> }
>
> mutex_init(&host->thread_lock);