linux-kernel - [v3,1/1] hwmon:(nct7904) Set default timeout

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Message-ID: <1590560219-41328-1-git-send-email-yuechao.zhao@advantech.com.cn>
Date:   Wed, 27 May 2020 06:16:59 +0000
From:   <yuechao.zhao@...antech.com.cn>
To:     <345351830@...com>
CC:     <amy.shih@...antech.com.tw>, <oakley.ding@...antech.com.tw>,
        <jia.sui@...antech.com.cn>,
        Yuechao Zhao <yuechao.zhao@...antech.com.cn>,
        Jean Delvare <jdelvare@...e.com>,
        Guenter Roeck <linux@...ck-us.net>,
        <linux-hwmon@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [v3,1/1] hwmon:(nct7904) Set default timeout

From: Yuechao Zhao <yuechao.zhao@...antech.com.cn>

The timeout module parameter should not be used for setting the default
timeout. Because, if you set the timeout = 0, the default timeout will
be meaningless. And the timeout module parameter of 0 means "no timeout
module paraameter specified".

Signed-off-by: Yuechao Zhao <yuechao.zhao@...antech.com.cn>
---
Change in v3:
- replace 'static int timeout = WATCHDOG_TIMEOUT;' with 'static int timeout;'
- fixed typo

Change in v2:
- modify subject to 'hwmon:(nct7904) Set default timeout'
---
 drivers/hwmon/nct7904.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/hwmon/nct7904.c b/drivers/hwmon/nct7904.c
index 18c95be..b042569 100644
--- a/drivers/hwmon/nct7904.c
+++ b/drivers/hwmon/nct7904.c
@@ -111,14 +111,14 @@
 #define MIN_TIMEOUT		(1 * 60)
 #define MAX_TIMEOUT		(255 * 60)
 
-static int timeout = WATCHDOG_TIMEOUT;
+static int timeout;
 module_param(timeout, int, 0);
 MODULE_PARM_DESC(timeout, "Watchdog timeout in minutes. 1 <= timeout <= 255, default="
-			__MODULE_STRING(WATCHODOG_TIMEOUT) ".");
+			__MODULE_STRING(WATCHDOG_TIMEOUT) ".");
 
 static bool nowayout = WATCHDOG_NOWAYOUT;
 module_param(nowayout, bool, 0);
-MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started once started (default="
+MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default="
 			__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
 
 static const unsigned short normal_i2c[] = {
@@ -1147,7 +1147,7 @@ static int nct7904_probe(struct i2c_client *client,
 	data->wdt.ops = &nct7904_wdt_ops;
 	data->wdt.info = &nct7904_wdt_info;
 
-	data->wdt.timeout = timeout * 60; /* in seconds */
+	data->wdt.timeout = WATCHDOG_TIMEOUT * 60; /* Set default timeout */
 	data->wdt.min_timeout = MIN_TIMEOUT;
 	data->wdt.max_timeout = MAX_TIMEOUT;
 	data->wdt.parent = &client->dev;
-- 
1.8.3.1