linux-kernel - [PATCH -next] pwm: lp3943: Fix an incorrect type in lp3943_pwm_parse

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Message-Id: <20240809080523.32717-1-jiapeng.chong@linux.alibaba.com>
Date: Fri,  9 Aug 2024 16:05:23 +0800
From: Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
To: ukleinek@...nel.org
Cc: linux-pwm@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>,
	Abaci Robot <abaci@...ux.alibaba.com>
Subject: [PATCH -next] pwm: lp3943: Fix an incorrect type in lp3943_pwm_parse_dt()

The return value from the call to of_property_count_u32_elems() is int.
However, the return value is being assigned to an u32 variable
'num_outputs', so making 'num_outputs' an int.

./drivers/pwm/pwm-lp3943.c:238:6-17: WARNING: Unsigned expression compared with zero: num_outputs <= 0.

Reported-by: Abaci Robot <abaci@...ux.alibaba.com>
Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=9710
Signed-off-by: Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
---
 drivers/pwm/pwm-lp3943.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/pwm/pwm-lp3943.c b/drivers/pwm/pwm-lp3943.c
index f0e94c9e5956..90b0733c00c1 100644
--- a/drivers/pwm/pwm-lp3943.c
+++ b/drivers/pwm/pwm-lp3943.c
@@ -218,8 +218,7 @@ static int lp3943_pwm_parse_dt(struct device *dev,
 	struct lp3943_platform_data *pdata;
 	struct lp3943_pwm_map *pwm_map;
 	enum lp3943_pwm_output *output;
-	int i, err, count = 0;
-	u32 num_outputs;
+	int i, err, num_outputs, count = 0;
 
 	if (!node)
 		return -EINVAL;
-- 
2.32.0.3.g01195cf9f