From: Dan Bogdan Nechita <dan.bogdan.nechita@gmail.com>
To: Arnd Bergmann <arnd@arndb.de>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>
CC: Michael Hennerich <michael.hennerich@analog.com>,
        <linux-kernel@vger.kernel.org>,
        Dan Bogdan Nechita <dan.bogdan.nechita@gmail.com>
Subject: [PATCH] misc: ad525x_dpot: Fix the enabling of the "otpXen" attributes
Date: Wed, 18 Nov 2015 18:16:15 +0200
Message-ID: <1447863375-2195-1-git-send-email-dan.bogdan.nechita@gmail.com>
MIME-Version: 1.0
Content-Type: text/plain
SpamDiagnosticOutput: 1:23
SpamDiagnosticMetadata: NSPM
X-MS-Exchange-CrossTenant-OriginalArrivalTime: 18 Nov 2015 16:16:30.3996
 (UTC)
X-MS-Exchange-CrossTenant-Id: 5afe0b00-7697-4969-b663-5eab37d5f47e
X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=5afe0b00-7697-4969-b663-5eab37d5f47e;Ip=[137.71.25.57];Helo=[nwd2mta2.analog.com]
X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem
X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH1PR03MB622
Sender: linux-kernel-owner@vger.kernel.org
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org
Content-Length: 1152
Lines: 32

Currently writing the attributes with "echo" will result in comparing:
"enabled\n" with "enabled\0" and attribute is always set to false.

Use the sysfs_streq() instead because it treats both NUL and
new-line-then-NUL as equivalent string terminations.

Signed-off-by: Dan Bogdan Nechita <dan.bogdan.nechita@gmail.com>
---
 drivers/misc/ad525x_dpot.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/misc/ad525x_dpot.c b/drivers/misc/ad525x_dpot.c
index 15e8807..4230e6a 100644
--- a/drivers/misc/ad525x_dpot.c
+++ b/drivers/misc/ad525x_dpot.c
@@ -452,7 +452,7 @@ static ssize_t sysfs_set_reg(struct device *dev,
 	int err;
 
 	if (reg & DPOT_ADDR_OTP_EN) {
-		if (!strncmp(buf, "enabled", sizeof("enabled")))
+		if (sysfs_streq(buf, "enabled"))
 			set_bit(DPOT_RDAC_MASK & reg, data->otp_en_mask);
 		else
 			clear_bit(DPOT_RDAC_MASK & reg, data->otp_en_mask);
-- 
1.7.9.5

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/