mmc: rtsx_pci: Convert to platform remove callback returning void

The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Link: https://lore.kernel.org/r/20230727070051.17778-17-frank.li@vivo.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

diff --git a/drivers/mmc/host/rtsx_pci_sdmmc.c b/drivers/mmc/host/rtsx_pci_sdmmc.c
index 062d07c..87d7843 100644 (file)
--- a/drivers/mmc/host/rtsx_pci_sdmmc.c
+++ b/drivers/mmc/host/rtsx_pci_sdmmc.c
@@ -1523,7 +1523,7 @@ static int rtsx_pci_sdmmc_drv_probe(struct platform_device *pdev)
        return 0;
 }
 
-static int rtsx_pci_sdmmc_drv_remove(struct platform_device *pdev)
+static void rtsx_pci_sdmmc_drv_remove(struct platform_device *pdev)
 {
        struct realtek_pci_sdmmc *host = platform_get_drvdata(pdev);
        struct rtsx_pcr *pcr;
@@ -1563,8 +1563,6 @@ static int rtsx_pci_sdmmc_drv_remove(struct platform_device *pdev)
 
        dev_dbg(&(pdev->dev),
                ": Realtek PCI-E SDMMC controller has been removed\n");
-
-       return 0;
 }
 
 static const struct platform_device_id rtsx_pci_sdmmc_ids[] = {
@@ -1578,7 +1576,7 @@ MODULE_DEVICE_TABLE(platform, rtsx_pci_sdmmc_ids);
 
 static struct platform_driver rtsx_pci_sdmmc_driver = {
        .probe          = rtsx_pci_sdmmc_drv_probe,
-       .remove         = rtsx_pci_sdmmc_drv_remove,
+       .remove_new     = rtsx_pci_sdmmc_drv_remove,
        .id_table       = rtsx_pci_sdmmc_ids,
        .driver         = {
                .name   = DRV_NAME_RTSX_PCI_SDMMC,