irqchip/mvebu-pic: Convert to platform_driver::remove_new() callback

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 ignored (apart
from emitting a warning) 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. Eventually after all drivers
are converted, .remove_new() will be renamed to .remove().

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>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Link: https://lore.kernel.org/r/df977ad4c02ff913b01cdd6c348e7fae3e08e651.1703284359.git.u.kleine-koenig@pengutronix.de

diff --git a/drivers/irqchip/irq-mvebu-pic.c b/drivers/irqchip/irq-mvebu-pic.c
index ef3d3646ccc2f62fd29cd05fc137da8bd8b0dafb..d17d9c0e2880926893b1101c731a20629100ef8f 100644 (file)
--- a/drivers/irqchip/irq-mvebu-pic.c
+++ b/drivers/irqchip/irq-mvebu-pic.c
@@ -167,14 +167,12 @@ static int mvebu_pic_probe(struct platform_device *pdev)
        return 0;
 }
 
-static int mvebu_pic_remove(struct platform_device *pdev)
+static void mvebu_pic_remove(struct platform_device *pdev)
 {
        struct mvebu_pic *pic = platform_get_drvdata(pdev);
 
        on_each_cpu(mvebu_pic_disable_percpu_irq, pic, 1);
        irq_domain_remove(pic->domain);
-
-       return 0;
 }
 
 static const struct of_device_id mvebu_pic_of_match[] = {
@@ -184,11 +182,11 @@ static const struct of_device_id mvebu_pic_of_match[] = {
 MODULE_DEVICE_TABLE(of, mvebu_pic_of_match);
 
 static struct platform_driver mvebu_pic_driver = {
-       .probe  = mvebu_pic_probe,
-       .remove = mvebu_pic_remove,
+       .probe          = mvebu_pic_probe,
+       .remove_new     = mvebu_pic_remove,
        .driver = {
-               .name = "mvebu-pic",
-               .of_match_table = mvebu_pic_of_match,
+               .name           = "mvebu-pic",
+               .of_match_table = mvebu_pic_of_match,
        },
 };
 module_platform_driver(mvebu_pic_driver);