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From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: Wolfram Sang <wsa@kernel.org>
Subject: [PATCH v1 2/2] i2c: dev: Use sysfs_emit() in "show" functions
Date: Mon, 12 Jul 2021 17:23:23 +0300	[thread overview]
Message-ID: <20210712142323.23118-2-andriy.shevchenko@linux.intel.com> (raw)
In-Reply-To: <20210712142323.23118-1-andriy.shevchenko@linux.intel.com>

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>
---
 drivers/i2c/i2c-dev.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/i2c/i2c-dev.c b/drivers/i2c/i2c-dev.c
index 6cf98c06653a..e2b1aba96401 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);
 
-- 
2.30.2


  reply	other threads:[~2021-07-12 14:23 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-12 14:23 [PATCH v1 1/2] i2c: dev: Define pr_fmt() and drop duplication substrings Andy Shevchenko
2021-07-12 14:23 ` Andy Shevchenko [this message]
2021-08-11 14:49   ` [PATCH v1 2/2] i2c: dev: Use sysfs_emit() in "show" functions Wolfram Sang
2021-08-11 14:47 ` [PATCH v1 1/2] i2c: dev: Define pr_fmt() and drop duplication substrings Wolfram Sang

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