linux-kernel - [PATCH 2/2] pwm: stm32: initialize raw local variables

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Date:   Fri, 18 May 2018 17:24:04 +0200
From:   Fabrice Gasnier <fabrice.gasnier@...com>
To:     <lee.jones@...aro.org>, <thierry.reding@...il.com>
CC:     <rdunlap@...radead.org>, <sfr@...b.auug.org.au>,
        <gerald.baeza@...com>, <alexandre.torgue@...com>,
        <mcoquelin.stm32@...il.com>, <linux-next@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <linux-pwm@...r.kernel.org>
Subject: [PATCH 2/2] pwm: stm32: initialize raw local variables

This removes build warning when COMPILE_TEST=y and MFD_STM32_TIMERS=n
in drivers/pwm/pwm-stm32.c. In function 'stm32_pwm_capture' 'raw_prd' and
'raw_dty' may be used uninitialized in this function
[-Wmaybe-uninitialized]

Signed-off-by: Fabrice Gasnier <fabrice.gasnier@...com>
---
 drivers/pwm/pwm-stm32.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pwm/pwm-stm32.c b/drivers/pwm/pwm-stm32.c
index 60bfc07..09383c6 100644
--- a/drivers/pwm/pwm-stm32.c
+++ b/drivers/pwm/pwm-stm32.c
@@ -170,7 +170,7 @@ static int stm32_pwm_capture(struct pwm_chip *chip, struct pwm_device *pwm,
 	unsigned long long prd, div, dty;
 	unsigned long rate;
 	unsigned int psc = 0, icpsc, scale;
-	u32 raw_prd, raw_dty;
+	u32 raw_prd = 0, raw_dty = 0;
 	int ret = 0;
 
 	mutex_lock(&priv->lock);
-- 
1.9.1