From: Johan Hovold Date: Thu, 9 Apr 2026 12:04:10 +0000 (+0200) Subject: spi: dln2: fix controller deregistration X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=c353020fbfa8514ee91a6de2d88de4e5edca5803;p=thirdparty%2Fkernel%2Flinux.git spi: dln2: fix controller deregistration Make sure to deregister the controller before disabling it to allow SPI device drivers to do I/O during deregistration. Fixes: 3d8c0d749da3 ("spi: add support for DLN-2 USB-SPI adapter") Cc: stable@vger.kernel.org # 4.0 Cc: Laurentiu Palcu Signed-off-by: Johan Hovold Link: https://patch.msgid.link/20260409120419.388546-12-johan@kernel.org Signed-off-by: Mark Brown --- diff --git a/drivers/spi/spi-dln2.c b/drivers/spi/spi-dln2.c index d90282960ab6c..392f0d05f5082 100644 --- a/drivers/spi/spi-dln2.c +++ b/drivers/spi/spi-dln2.c @@ -758,7 +758,7 @@ static int dln2_spi_probe(struct platform_device *pdev) pm_runtime_set_active(&pdev->dev); pm_runtime_enable(&pdev->dev); - ret = devm_spi_register_controller(&pdev->dev, host); + ret = spi_register_controller(host); if (ret < 0) { dev_err(&pdev->dev, "Failed to register host\n"); goto exit_register; @@ -783,10 +783,16 @@ static void dln2_spi_remove(struct platform_device *pdev) struct spi_controller *host = platform_get_drvdata(pdev); struct dln2_spi *dln2 = spi_controller_get_devdata(host); + spi_controller_get(host); + + spi_unregister_controller(host); + pm_runtime_disable(&pdev->dev); if (dln2_spi_enable(dln2, false) < 0) dev_err(&pdev->dev, "Failed to disable SPI module\n"); + + spi_controller_put(host); } #ifdef CONFIG_PM_SLEEP