* [PATCH] rtc: snvs: Add check for clk_enable()
@ 2024-12-15 22:28 Mingwei Zheng
0 siblings, 0 replies; only message in thread
From: Mingwei Zheng @ 2024-12-15 22:28 UTC (permalink / raw)
To: alexandre.belloni, anson.huang
Cc: linux-rtc, linux-kernel, Mingwei Zheng, Jiasheng Jiang
Add check for the return value of clk_enable() to catch the potential
error.
Fixes: edb190cb1734 ("rtc: snvs: make sure clock is enabled for interrupt handle")
Signed-off-by: Mingwei Zheng <zmw12306@gmail.com>
Signed-off-by: Jiasheng Jiang <jiashengjiangcool@gmail.com>
---
drivers/rtc/rtc-snvs.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/rtc/rtc-snvs.c b/drivers/rtc/rtc-snvs.c
index d82acf1af1fa..62af750e5751 100644
--- a/drivers/rtc/rtc-snvs.c
+++ b/drivers/rtc/rtc-snvs.c
@@ -281,8 +281,11 @@ static irqreturn_t snvs_rtc_irq_handler(int irq, void *dev_id)
struct snvs_rtc_data *data = dev_get_drvdata(dev);
u32 lpsr;
u32 events = 0;
+ int ret;
- clk_enable(data->clk);
+ ret = clk_enable(data->clk);
+ if (ret)
+ return IRQ_NONE;
regmap_read(data->regmap, data->offset + SNVS_LPSR, &lpsr);
--
2.34.1
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