spi: microchip-core-qspi: 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.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230303172041.2103336-37-u.kleine-koenig@pengutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/spi/spi-microchip-core-qspi.c b/drivers/spi/spi-microchip-core-qspi.c
index 19a6a46829f6d963ee671701e9b5a299fc6cdc6e..4f76ddf97b10ff528ff14c546800058c53c261f0 100644 (file)
--- a/drivers/spi/spi-microchip-core-qspi.c
+++ b/drivers/spi/spi-microchip-core-qspi.c
@@ -566,7 +566,7 @@ out:
        return ret;
 }
 
-static int mchp_coreqspi_remove(struct platform_device *pdev)
+static void mchp_coreqspi_remove(struct platform_device *pdev)
 {
        struct mchp_coreqspi *qspi = platform_get_drvdata(pdev);
        u32 control = readl_relaxed(qspi->regs + REG_CONTROL);
@@ -575,8 +575,6 @@ static int mchp_coreqspi_remove(struct platform_device *pdev)
        control &= ~CONTROL_ENABLE;
        writel_relaxed(control, qspi->regs + REG_CONTROL);
        clk_disable_unprepare(qspi->clk);
-
-       return 0;
 }
 
 static const struct of_device_id mchp_coreqspi_of_match[] = {
@@ -591,7 +589,7 @@ static struct platform_driver mchp_coreqspi_driver = {
                .name = "microchip,coreqspi",
                .of_match_table = mchp_coreqspi_of_match,
        },
-       .remove = mchp_coreqspi_remove,
+       .remove_new = mchp_coreqspi_remove,
 };
 module_platform_driver(mchp_coreqspi_driver);