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authorUwe Kleine-König <u.kleine-koenig@pengutronix.de>2023-03-04 14:29:53 +0100
committerAlexandre Belloni <alexandre.belloni@bootlin.com>2023-03-17 23:03:17 +0100
commit06e5e4a5a996aefb5d8e0c8db05b014e3bd91a28 (patch)
tree1033259797638c263f0f20d7967a7d995126c7f2 /drivers/rtc
parentad01bf83bfc33c53079415f02e160bf72221d7e6 (diff)
rtc: at91sam9: 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> Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com> Link: https://lore.kernel.org/r/20230304133028.2135435-7-u.kleine-koenig@pengutronix.de Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Diffstat (limited to 'drivers/rtc')
-rw-r--r--drivers/rtc/rtc-at91sam9.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/rtc/rtc-at91sam9.c b/drivers/rtc/rtc-at91sam9.c
index b7b5ea1a4e67..610f27dfc462 100644
--- a/drivers/rtc/rtc-at91sam9.c
+++ b/drivers/rtc/rtc-at91sam9.c
@@ -442,7 +442,7 @@ err_clk:
/*
* Disable and remove the RTC driver
*/
-static int at91_rtc_remove(struct platform_device *pdev)
+static void at91_rtc_remove(struct platform_device *pdev)
{
struct sam9_rtc *rtc = platform_get_drvdata(pdev);
u32 mr = rtt_readl(rtc, MR);
@@ -451,8 +451,6 @@ static int at91_rtc_remove(struct platform_device *pdev)
rtt_writel(rtc, MR, mr & ~(AT91_RTT_ALMIEN | AT91_RTT_RTTINCIEN));
clk_disable_unprepare(rtc->sclk);
-
- return 0;
}
static void at91_rtc_shutdown(struct platform_device *pdev)
@@ -531,7 +529,7 @@ MODULE_DEVICE_TABLE(of, at91_rtc_dt_ids);
static struct platform_driver at91_rtc_driver = {
.probe = at91_rtc_probe,
- .remove = at91_rtc_remove,
+ .remove_new = at91_rtc_remove,
.shutdown = at91_rtc_shutdown,
.driver = {
.name = "rtc-at91sam9",