[PATCH 01/13] iio: core: Use sysfs_emit()

[Lars-Peter Clausen <lars@metafoo.de>]

sysfs_emit() is preferred over raw s*printf() for sysfs attributes since it
knows about the sysfs buffer specifics and has some built-in checks for
size and alignment.

This patch converts the places in the IIO core that follow the pattern of

   return s*printf(...)

to

   return sysfs_emit(...)

This covers the new places that have been introduced where sprintf() is
used for formatting sysfs output since the last time this was done in
commit 83ca56b663cf ("iio: core: Use sysfs_emit() (trivial bits)").

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
---
 drivers/iio/industrialio-buffer.c | 4 ++--
 drivers/iio/industrialio-core.c   | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c
index 94eb9f6cf128..f7721553a938 100644
--- a/drivers/iio/industrialio-buffer.c
+++ b/drivers/iio/industrialio-buffer.c
@@ -1383,9 +1383,9 @@ static ssize_t direction_show(struct device *dev,
 
 	switch (buffer->direction) {
 	case IIO_BUFFER_DIRECTION_IN:
-		return sprintf(buf, "in\n");
+		return sysfs_emit(buf, "in\n");
 	case IIO_BUFFER_DIRECTION_OUT:
-		return sprintf(buf, "out\n");
+		return sysfs_emit(buf, "out\n");
 	default:
 		return -EINVAL;
 	}
diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index 20d5178ca073..25144383865c 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -747,7 +747,7 @@ static ssize_t iio_read_channel_label(struct device *dev,
 		return indio_dev->info->read_label(indio_dev, this_attr->c, buf);
 
 	if (this_attr->c->extend_name)
-		return sprintf(buf, "%s\n", this_attr->c->extend_name);
+		return sysfs_emit(buf, "%s\n", this_attr->c->extend_name);
 
 	return -EINVAL;
 }
-- 
2.30.2