linux-kernel - [PATCH 13/16] asus-wmi: return proper value in store

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Message-Id: <1309512881-2901-14-git-send-email-corentin.chary@gmail.com>
Date:	Fri,  1 Jul 2011 11:34:38 +0200
From:	Corentin Chary <corentin.chary@...il.com>
To:	platform-driver-x86@...r.kernel.org
Cc:	Corentin Chary <corentin.chary@...il.com>, stable@...nel.org,
	Corentin Chary <corentincj@...aif.net> (maintainer:ASUS NOTEBOOKS
	AN...),
	Matthew Garrett <mjg@...hat.com> (maintainer:X86 PLATFORM DRIVERS),
	acpi4asus-user@...ts.sourceforge.net (open list:ASUS NOTEBOOKS AN...),
	linux-kernel@...r.kernel.org (open list)
Subject: [PATCH 13/16] asus-wmi: return proper value in store_cpufv()

Cc: stable@...nel.org
Signed-off-by: Corentin Chary <corentin.chary@...il.com>
---
 drivers/platform/x86/asus-wmi.c |    8 ++++++--
 1 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
index be9e89a..b181f5d 100644
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@ -1307,14 +1307,18 @@ ASUS_WMI_CREATE_DEVICE_ATTR(cardr, 0644, ASUS_WMI_DEVID_CARDREADER);
 static ssize_t store_cpufv(struct device *dev, struct device_attribute *attr,
 			   const char *buf, size_t count)
 {
-	int value;
+	int value, rv;
 
 	if (!count || sscanf(buf, "%i", &value) != 1)
 		return -EINVAL;
 	if (value < 0 || value > 2)
 		return -EINVAL;
 
-	return asus_wmi_evaluate_method(ASUS_WMI_METHODID_CFVS, value, 0, NULL);
+	rv = asus_wmi_evaluate_method(ASUS_WMI_METHODID_CFVS, value, 0, NULL);
+	if (rv < 0)
+		return rv;
+
+	return count;
 }
 
 static DEVICE_ATTR(cpufv, S_IRUGO | S_IWUSR, NULL, store_cpufv);
-- 
1.7.3.4

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