spi: pic32: 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/20230303172041.2103336-54-u.kleine-koenig@pengutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/spi/spi-pic32.c b/drivers/spi/spi-pic32.c
index 7e5c09a7d48904bafb69cfc74c25897542e5ff80..5a64ad0c94fecab57a4e61e99c9c2a3e2874cabe 100644 (file)
--- a/drivers/spi/spi-pic32.c
+++ b/drivers/spi/spi-pic32.c
@@ -844,7 +844,7 @@ err_master:
        return ret;
 }
 
-static int pic32_spi_remove(struct platform_device *pdev)
+static void pic32_spi_remove(struct platform_device *pdev)
 {
        struct pic32_spi *pic32s;
 
@@ -852,8 +852,6 @@ static int pic32_spi_remove(struct platform_device *pdev)
        pic32_spi_disable(pic32s);
        clk_disable_unprepare(pic32s->clk);
        pic32_spi_dma_unprep(pic32s);
-
-       return 0;
 }
 
 static const struct of_device_id pic32_spi_of_match[] = {
@@ -868,7 +866,7 @@ static struct platform_driver pic32_spi_driver = {
                .of_match_table = of_match_ptr(pic32_spi_of_match),
        },
        .probe = pic32_spi_probe,
-       .remove = pic32_spi_remove,
+       .remove_new = pic32_spi_remove,
 };
 
 module_platform_driver(pic32_spi_driver);