From: Vishwas M <vishwas.reddy.vr@gmail.com>
To: unlisted-recipients:; (no To-header on input)
Cc: Steve Glendinning <steve.glendinning@shawell.net>,
Vishwas M <vishwas.reddy.vr@gmail.com>,
Jean Delvare <jdelvare@suse.com>,
Guenter Roeck <linux@roeck-us.net>,
linux-hwmon@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH] hwmon: (emc2103) fix unable to change fan pwm1_enable attribute
Date: Tue, 7 Jul 2020 19:57:47 +0530 [thread overview]
Message-ID: <20200707142747.118414-1-vishwas.reddy.vr@gmail.com> (raw)
This patch fixes a bug which does not let FAN mode to be changed from
sysfs(pwm1_enable). i.e pwm1_enable can not be set to 3, it will always
remain at 0.
This is caused because the device driver handles the result of
"read_u8_from_i2c(client, REG_FAN_CONF1, &conf_reg)" incorrectly. The
driver thinks an error has occurred if the (result != 0). This has been
fixed by changing the condition to (result < 0).
Signed-off-by: Vishwas M <vishwas.reddy.vr@gmail.com>
---
drivers/hwmon/emc2103.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/hwmon/emc2103.c b/drivers/hwmon/emc2103.c
index 491a570e8e50..924c02c1631d 100644
--- a/drivers/hwmon/emc2103.c
+++ b/drivers/hwmon/emc2103.c
@@ -443,7 +443,7 @@ static ssize_t pwm1_enable_store(struct device *dev,
}
result = read_u8_from_i2c(client, REG_FAN_CONF1, &conf_reg);
- if (result) {
+ if (result < 0) {
count = result;
goto err;
}
--
2.25.1
next reply other threads:[~2020-07-07 14:31 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-07 14:27 Vishwas M [this message]
2020-07-07 14:56 ` Guenter Roeck
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