From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Mon, 12 Jul 2021 14:23:23 +0000 (+0300)
Subject: i2c: dev: Use sysfs_emit() in "show" functions
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=b18f32d9874ec23f12416c08764d65a318aeb9f6;p=linux.git

i2c: dev: Use sysfs_emit() in "show" functions

The sysfs_emit() function was introduced to make it less ambiguous
which function is preferred when writing to the output buffer in
a "show" callback [1].

Convert the I²C device sysfs interface from sprintf() to sysfs_emit()
accordingly, as the latter is aware of the PAGE_SIZE buffer and correctly
returns the number of bytes written into the buffer.

No functional change intended.

[1] Documentation/filesystems/sysfs.rst

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
---

diff --git a/drivers/i2c/i2c-dev.c b/drivers/i2c/i2c-dev.c
index 6cf98c06653a1..e2b1aba964014 100644
--- a/drivers/i2c/i2c-dev.c
+++ b/drivers/i2c/i2c-dev.c
@@ -102,7 +102,7 @@ static ssize_t name_show(struct device *dev,
 
 	if (!i2c_dev)
 		return -ENODEV;
-	return sprintf(buf, "%s\n", i2c_dev->adap->name);
+	return sysfs_emit(buf, "%s\n", i2c_dev->adap->name);
 }
 static DEVICE_ATTR_RO(name);