linux-kernel - [PATCH] mei: bus: use scnprintf in *

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Date:	Sat, 14 Nov 2015 21:51:04 +0100
From:	Rasmus Villemoes <linux@...musvillemoes.dk>
To:	Tomas Winkler <tomas.winkler@...el.com>
Cc:	Rasmus Villemoes <linux@...musvillemoes.dk>,
	linux-kernel@...r.kernel.org
Subject: [PATCH] mei: bus: use scnprintf in *_show

There's no reason to duplicate the logic provided by scnprintf().

Signed-off-by: Rasmus Villemoes <linux@...musvillemoes.dk>
---
 drivers/misc/mei/bus.c | 19 ++++---------------
 1 file changed, 4 insertions(+), 15 deletions(-)

diff --git a/drivers/misc/mei/bus.c b/drivers/misc/mei/bus.c
index 0b05aa938799..630bdf1f8bcb 100644
--- a/drivers/misc/mei/bus.c
+++ b/drivers/misc/mei/bus.c
@@ -617,11 +617,8 @@ static ssize_t name_show(struct device *dev, struct device_attribute *a,
 			     char *buf)
 {
 	struct mei_cl_device *cldev = to_mei_cl_device(dev);
-	size_t len;
 
-	len = snprintf(buf, PAGE_SIZE, "%s", cldev->name);
-
-	return (len >= PAGE_SIZE) ? (PAGE_SIZE - 1) : len;
+	return scnprintf(buf, PAGE_SIZE, "%s", cldev->name);
 }
 static DEVICE_ATTR_RO(name);
 
@@ -630,11 +627,8 @@ static ssize_t uuid_show(struct device *dev, struct device_attribute *a,
 {
 	struct mei_cl_device *cldev = to_mei_cl_device(dev);
 	const uuid_le *uuid = mei_me_cl_uuid(cldev->me_cl);
-	size_t len;
-
-	len = snprintf(buf, PAGE_SIZE, "%pUl", uuid);
 
-	return (len >= PAGE_SIZE) ? (PAGE_SIZE - 1) : len;
+	return scnprintf(buf, PAGE_SIZE, "%pUl", uuid);
 }
 static DEVICE_ATTR_RO(uuid);
 
@@ -643,11 +637,8 @@ static ssize_t version_show(struct device *dev, struct device_attribute *a,
 {
 	struct mei_cl_device *cldev = to_mei_cl_device(dev);
 	u8 version = mei_me_cl_ver(cldev->me_cl);
-	size_t len;
-
-	len = snprintf(buf, PAGE_SIZE, "%02X", version);
 
-	return (len >= PAGE_SIZE) ? (PAGE_SIZE - 1) : len;
+	return scnprintf(buf, PAGE_SIZE, "%02X", version);
 }
 static DEVICE_ATTR_RO(version);
 
@@ -656,10 +647,8 @@ static ssize_t modalias_show(struct device *dev, struct device_attribute *a,
 {
 	struct mei_cl_device *cldev = to_mei_cl_device(dev);
 	const uuid_le *uuid = mei_me_cl_uuid(cldev->me_cl);
-	size_t len;
 
-	len = snprintf(buf, PAGE_SIZE, "mei:%s:%pUl:", cldev->name, uuid);
-	return (len >= PAGE_SIZE) ? (PAGE_SIZE - 1) : len;
+	return scnprintf(buf, PAGE_SIZE, "mei:%s:%pUl:", cldev->name, uuid);
 }
 static DEVICE_ATTR_RO(modalias);
 
-- 
2.6.1

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