spi: s3c64xx: fix controller deregistration

Make sure to deregister the controller before releasing underlying
resources like DMA during driver unbind.

Fixes: 91800f0e9005 ("spi/s3c64xx: Use managed registration")
Cc: stable@vger.kernel.org	# 3.13: 76fbad410c0f
Cc: stable@vger.kernel.org	# 3.13
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://patch.msgid.link/20260410081757.503099-12-johan@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c
index ba85243d6d89c59fcdf083b87ca97007da1fbc37..95b61264b67998b2f9943c86eb2ba157ea72a96a 100644 (file)
--- a/drivers/spi/spi-s3c64xx.c
+++ b/drivers/spi/spi-s3c64xx.c
@@ -1369,7 +1369,7 @@ static int s3c64xx_spi_probe(struct platform_device *pdev)
               S3C64XX_SPI_INT_TX_OVERRUN_EN | S3C64XX_SPI_INT_TX_UNDERRUN_EN,
               sdd->regs + S3C64XX_SPI_INT_EN);
 
-       ret = devm_spi_register_controller(&pdev->dev, host);
+       ret = spi_register_controller(host);
        if (ret != 0) {
                dev_err(&pdev->dev, "cannot register SPI host: %d\n", ret);
                goto err_pm_put;
@@ -1399,6 +1399,8 @@ static void s3c64xx_spi_remove(struct platform_device *pdev)
 
        pm_runtime_get_sync(&pdev->dev);
 
+       spi_unregister_controller(host);
+
        writel(0, sdd->regs + S3C64XX_SPI_INT_EN);
 
        if (!is_polling(sdd)) {