spi: fsl-lpspi: 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>
Link: https://lore.kernel.org/r/20230303172041.2103336-27-u.kleine-koenig@pengutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/spi/spi-fsl-lpspi.c b/drivers/spi/spi-fsl-lpspi.c
index 34488de55587139df47a3631079273f64df219bf..b9e8b7b241a48c751185da08688a1a4b3a5aa6fd 100644 (file)
--- a/drivers/spi/spi-fsl-lpspi.c
+++ b/drivers/spi/spi-fsl-lpspi.c
@@ -937,7 +937,7 @@ out_controller_put:
        return ret;
 }
 
-static int fsl_lpspi_remove(struct platform_device *pdev)
+static void fsl_lpspi_remove(struct platform_device *pdev)
 {
        struct spi_controller *controller = platform_get_drvdata(pdev);
        struct fsl_lpspi_data *fsl_lpspi =
@@ -946,7 +946,6 @@ static int fsl_lpspi_remove(struct platform_device *pdev)
        fsl_lpspi_dma_exit(controller);
 
        pm_runtime_disable(fsl_lpspi->dev);
-       return 0;
 }
 
 static int __maybe_unused fsl_lpspi_suspend(struct device *dev)
@@ -983,7 +982,7 @@ static struct platform_driver fsl_lpspi_driver = {
                .pm = &fsl_lpspi_pm_ops,
        },
        .probe = fsl_lpspi_probe,
-       .remove = fsl_lpspi_remove,
+       .remove_new = fsl_lpspi_remove,
 };
 module_platform_driver(fsl_lpspi_driver);