rtc: wm8350: Handle error for wm8350_register_irq

[ Upstream commit 43f0269b6b89c1eec4ef83c48035608f4dcdd886 ]

As the potential failure of the wm8350_register_irq(),
it should be better to check it and return error if fails.
Also, it need not free 'wm_rtc->rtc' since it will be freed
automatically.

Fixes: 077eaf5b40ec ("rtc: rtc-wm8350: add support for WM8350 RTC")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20220303085030.291793-1-jiasheng@iscas.ac.cn
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/rtc/rtc-wm8350.c b/drivers/rtc/rtc-wm8350.c
index 2018614f258f6f83cf9897897500022a49fd20ae..6eaa9321c074102c58fdf3aa8069a82936cab8be 100644 (file)
--- a/drivers/rtc/rtc-wm8350.c
+++ b/drivers/rtc/rtc-wm8350.c
@@ -432,14 +432,21 @@ static int wm8350_rtc_probe(struct platform_device *pdev)
                return ret;
        }
 
-       wm8350_register_irq(wm8350, WM8350_IRQ_RTC_SEC,
+       ret = wm8350_register_irq(wm8350, WM8350_IRQ_RTC_SEC,
                            wm8350_rtc_update_handler, 0,
                            "RTC Seconds", wm8350);
+       if (ret)
+               return ret;
+
        wm8350_mask_irq(wm8350, WM8350_IRQ_RTC_SEC);
 
-       wm8350_register_irq(wm8350, WM8350_IRQ_RTC_ALM,
+       ret = wm8350_register_irq(wm8350, WM8350_IRQ_RTC_ALM,
                            wm8350_rtc_alarm_handler, 0,
                            "RTC Alarm", wm8350);
+       if (ret) {
+               wm8350_free_irq(wm8350, WM8350_IRQ_RTC_SEC, wm8350);
+               return ret;
+       }
 
        return 0;
 }