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From: Jiasheng Jiang <jiasheng@iscas.ac.cn>
To: a.zummo@towertech.it, alexandre.belloni@bootlin.com
Cc: patches@opensource.cirrus.com, linux-rtc@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	Jiasheng Jiang <jiasheng@iscas.ac.cn>
Subject: [PATCH] rtc: rtc-wm8350: Handle error for wm8350_register_irq
Date: Thu,  3 Mar 2022 16:50:30 +0800	[thread overview]
Message-ID: <20220303085030.291793-1-jiasheng@iscas.ac.cn> (raw)

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>
---
 drivers/rtc/rtc-wm8350.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/drivers/rtc/rtc-wm8350.c b/drivers/rtc/rtc-wm8350.c
index 2018614f258f..6eaa9321c074 100644
--- 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;
 }
-- 
2.25.1


             reply	other threads:[~2022-03-03  8:50 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-03-03  8:50 Jiasheng Jiang [this message]
2022-03-03 13:39 ` [PATCH] rtc: rtc-wm8350: Handle error for wm8350_register_irq Charles Keepax
2022-03-08 23:31 ` Alexandre Belloni

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