linux-kernel - [PATCH] rtc: zynqmp: initialize fract

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Date:   Wed, 27 Jul 2022 12:00:18 +0200
From:   alexandre.belloni@...tlin.com
To:     Alessandro Zummo <a.zummo@...ertech.it>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Michal Simek <michal.simek@...inx.com>
Cc:     linux-rtc@...r.kernel.org, kernel test robot <lkp@...el.com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH] rtc: zynqmp: initialize fract_tick

From: Alexandre Belloni <alexandre.belloni@...tlin.com>

fract_tick is used uninitialized when fract_offset is 0

Reported-by: kernel test robot <lkp@...el.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@...tlin.com>
---
 drivers/rtc/rtc-zynqmp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/rtc/rtc-zynqmp.c b/drivers/rtc/rtc-zynqmp.c
index 1dd389b891fe..c9b85c838ebe 100644
--- a/drivers/rtc/rtc-zynqmp.c
+++ b/drivers/rtc/rtc-zynqmp.c
@@ -203,7 +203,7 @@ static int xlnx_rtc_set_offset(struct device *dev, long offset)
 	struct xlnx_rtc_dev *xrtcdev = dev_get_drvdata(dev);
 	unsigned long long rtc_ppb = RTC_PPB;
 	unsigned int tick_mult = do_div(rtc_ppb, xrtcdev->freq);
-	unsigned char fract_tick;
+	unsigned char fract_tick = 0;
 	unsigned int calibval;
 	short int  max_tick;
 	int fract_offset;
-- 
2.36.1