[PATCH 28/87] spi: fsl-spi: Convert to platform remove callback returning void

[Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>]

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@xxxxxxxxxxxxxx>
---
 drivers/spi/spi-fsl-spi.c | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/drivers/spi/spi-fsl-spi.c b/drivers/spi/spi-fsl-spi.c
index 93152144fd2e..725d043488a1 100644
--- a/drivers/spi/spi-fsl-spi.c
+++ b/drivers/spi/spi-fsl-spi.c
@@ -716,13 +716,12 @@ static int of_fsl_spi_probe(struct platform_device *ofdev)
 	return ret;
 }
 
-static int of_fsl_spi_remove(struct platform_device *ofdev)
+static void of_fsl_spi_remove(struct platform_device *ofdev)
 {
 	struct spi_master *master = platform_get_drvdata(ofdev);
 	struct mpc8xxx_spi *mpc8xxx_spi = spi_master_get_devdata(master);
 
 	fsl_spi_cpm_free(mpc8xxx_spi);
-	return 0;
 }
 
 static struct platform_driver of_fsl_spi_driver = {
@@ -731,7 +730,7 @@ static struct platform_driver of_fsl_spi_driver = {
 		.of_match_table = of_fsl_spi_match,
 	},
 	.probe		= of_fsl_spi_probe,
-	.remove		= of_fsl_spi_remove,
+	.remove_new	= of_fsl_spi_remove,
 };
 
 #ifdef CONFIG_MPC832x_RDB
@@ -763,20 +762,18 @@ static int plat_mpc8xxx_spi_probe(struct platform_device *pdev)
 	return PTR_ERR_OR_ZERO(master);
 }
 
-static int plat_mpc8xxx_spi_remove(struct platform_device *pdev)
+static void plat_mpc8xxx_spi_remove(struct platform_device *pdev)
 {
 	struct spi_master *master = platform_get_drvdata(pdev);
 	struct mpc8xxx_spi *mpc8xxx_spi = spi_master_get_devdata(master);
 
 	fsl_spi_cpm_free(mpc8xxx_spi);
-
-	return 0;
 }
 
 MODULE_ALIAS("platform:mpc8xxx_spi");
 static struct platform_driver mpc8xxx_spi_driver = {
 	.probe = plat_mpc8xxx_spi_probe,
-	.remove = plat_mpc8xxx_spi_remove,
+	.remove_new = plat_mpc8xxx_spi_remove,
 	.driver = {
 		.name = "mpc8xxx_spi",
 	},
-- 
2.39.1