netdev - [PATCH net-next 04/13] s390/qeth: use kstrtobool() in qeth_bridgeport_hostnotification

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Message-Id: <20171018154025.73630-5-jwi@linux.vnet.ibm.com>
Date:   Wed, 18 Oct 2017 17:40:16 +0200
From:   Julian Wiedmann <jwi@...ux.vnet.ibm.com>
To:     David Miller <davem@...emloft.net>
Cc:     <netdev@...r.kernel.org>, <linux-s390@...r.kernel.org>,
        Martin Schwidefsky <schwidefsky@...ibm.com>,
        Heiko Carstens <heiko.carstens@...ibm.com>,
        Stefan Raspl <raspl@...ux.vnet.ibm.com>,
        Ursula Braun <ubraun@...ux.vnet.ibm.com>,
        Julian Wiedmann <jwi@...ux.vnet.ibm.com>
Subject: [PATCH net-next 04/13] s390/qeth: use kstrtobool() in qeth_bridgeport_hostnotification_store()

From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>

The sysfs enabled value is a boolean, so kstrtobool() is a better fit
for parsing the input string since it does the range checking for us.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Signed-off-by: Julian Wiedmann <jwi@...ux.vnet.ibm.com>
---
 drivers/s390/net/qeth_l2_sys.c | 13 +++++--------
 1 file changed, 5 insertions(+), 8 deletions(-)

diff --git a/drivers/s390/net/qeth_l2_sys.c b/drivers/s390/net/qeth_l2_sys.c
index 4608daedb204..470a4e5f3c62 100644
--- a/drivers/s390/net/qeth_l2_sys.c
+++ b/drivers/s390/net/qeth_l2_sys.c
@@ -146,18 +146,15 @@ static ssize_t qeth_bridgeport_hostnotification_store(struct device *dev,
 		struct device_attribute *attr, const char *buf, size_t count)
 {
 	struct qeth_card *card = dev_get_drvdata(dev);
-	int rc = 0;
-	int enable;
+	bool enable;
+	int rc;
 
 	if (!card)
 		return -EINVAL;
 
-	if (sysfs_streq(buf, "0"))
-		enable = 0;
-	else if (sysfs_streq(buf, "1"))
-		enable = 1;
-	else
-		return -EINVAL;
+	rc = kstrtobool(buf, &enable);
+	if (rc)
+		return rc;
 
 	mutex_lock(&card->conf_mutex);
 
-- 
2.13.5