mailbox: stm32-ipcc: 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 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: Jassi Brar <jaswinder.singh@linaro.org>

diff --git a/drivers/mailbox/stm32-ipcc.c b/drivers/mailbox/stm32-ipcc.c
index 4ad3653f38666bb3db7ef16a86bf63c955e01c04..1442f275782bd5b66c28c1ceae2fac36b2354a13 100644 (file)
--- a/drivers/mailbox/stm32-ipcc.c
+++ b/drivers/mailbox/stm32-ipcc.c
@@ -331,7 +331,7 @@ err_clk:
        return ret;
 }
 
-static int stm32_ipcc_remove(struct platform_device *pdev)
+static void stm32_ipcc_remove(struct platform_device *pdev)
 {
        struct device *dev = &pdev->dev;
 
@@ -339,8 +339,6 @@ static int stm32_ipcc_remove(struct platform_device *pdev)
                dev_pm_clear_wake_irq(&pdev->dev);
 
        device_set_wakeup_capable(dev, false);
-
-       return 0;
 }
 
 #ifdef CONFIG_PM_SLEEP
@@ -381,7 +379,7 @@ static struct platform_driver stm32_ipcc_driver = {
                .of_match_table = stm32_ipcc_of_match,
        },
        .probe          = stm32_ipcc_probe,
-       .remove         = stm32_ipcc_remove,
+       .remove_new     = stm32_ipcc_remove,
 };
 
 module_platform_driver(stm32_ipcc_driver);