linux-kernel - [PATCH 3/9] i8k: Return -ENODATA for invalid temperature

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Message-Id: <1421069525-12875-4-git-send-email-pali.rohar@gmail.com>
Date:	Mon, 12 Jan 2015 14:31:59 +0100
From:	Pali Rohár <pali.rohar@...il.com>
To:	Guenter Roeck <linux@...ck-us.net>, Arnd Bergmann <arnd@...db.de>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	Steven Honeyman <stevenhoneyman@...il.com>,
	Jean Delvare <jdelvare@...e.de>,
	Gabriele Mazzotta <gabriele.mzt@...il.com>,
	Jochen Eisinger <jochen@...guin-breeder.org>,
	Valdis.Kletnieks@...edu, linux-kernel@...r.kernel.org,
	Pali Rohár <pali.rohar@...il.com>
Subject: [PATCH 3/9] i8k: Return -ENODATA for invalid temperature

Guenter Roeck suggested to return -ENODATA instead -ERANGE or -EINVAL when BIOS
reports invalid temperature value.

Signed-off-by: Pali Rohár <pali.rohar@...il.com>
Reviewed-by: Guenter Roeck <linux@...ck-us.net>
Tested-by: Guenter Roeck <linux@...ck-us.net>
---
 drivers/char/i8k.c |    4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/char/i8k.c b/drivers/char/i8k.c
index afcc9fe..1854fab 100644
--- a/drivers/char/i8k.c
+++ b/drivers/char/i8k.c
@@ -331,7 +331,7 @@ static int i8k_get_temp(int sensor)
 		prev[sensor] = temp;
 	}
 	if (temp > I8K_MAX_TEMP)
-		return -ERANGE;
+		return -ENODATA;
 #endif
 
 	return temp;
@@ -533,8 +533,6 @@ static ssize_t i8k_hwmon_show_temp(struct device *dev,
 	int temp;
 
 	temp = i8k_get_temp(index);
-	if (temp == -ERANGE)
-		return -EINVAL;
 	if (temp < 0)
 		return temp;
 	return sprintf(buf, "%d\n", temp * 1000);
-- 
1.7.9.5

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