spi: sifive: 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/20230303172041.2103336-68-u.kleine-koenig@pengutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/spi/spi-sifive.c b/drivers/spi/spi-sifive.c
index e29e85cee88a22eb61daf900c7411f8ab4d9f971..055de44e0d2251d7d79dbe37f0ced0c4aef3245b 100644 (file)
--- a/drivers/spi/spi-sifive.c
+++ b/drivers/spi/spi-sifive.c
@@ -415,7 +415,7 @@ put_master:
        return ret;
 }
 
-static int sifive_spi_remove(struct platform_device *pdev)
+static void sifive_spi_remove(struct platform_device *pdev)
 {
        struct spi_master *master = platform_get_drvdata(pdev);
        struct sifive_spi *spi = spi_master_get_devdata(master);
@@ -423,8 +423,6 @@ static int sifive_spi_remove(struct platform_device *pdev)
        /* Disable all the interrupts just in case */
        sifive_spi_write(spi, SIFIVE_SPI_REG_IE, 0);
        clk_disable_unprepare(spi->clk);
-
-       return 0;
 }
 
 static int sifive_spi_suspend(struct device *dev)
@@ -473,7 +471,7 @@ MODULE_DEVICE_TABLE(of, sifive_spi_of_match);
 
 static struct platform_driver sifive_spi_driver = {
        .probe = sifive_spi_probe,
-       .remove = sifive_spi_remove,
+       .remove_new = sifive_spi_remove,
        .driver = {
                .name = SIFIVE_SPI_DRIVER_NAME,
                .pm = &sifive_spi_pm_ops,