Commit 0207483b authored by Lars-Peter Clausen's avatar Lars-Peter Clausen Committed by Jonathan Cameron
Browse files

iio: iio_enum_available_read(): Convert to sysfs_emit_at() 



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

Convert the iio_enum_available_read() function to use sysfs_emit_at()
instead of scnprintf().

The conversion is straight forward, the only difference is that
sysfs_emit_at() takes the buffers start address and an offset as parameters
and already knows about the buffer's size limit.

Signed-off-by: default avatarLars-Peter Clausen <lars@metafoo.de>
Link: https://lore.kernel.org/r/20210320071405.9347-3-lars@metafoo.de


Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
parent 83ca56b6

drivers/iio/industrialio-core.c

+1 −1
Original line number Diff line number Diff line
@@ -504,7 +504,7 @@ ssize_t iio_enum_available_read(struct iio_dev *indio_dev, 
	for (i = 0; i < e->num_items; ++i) {

		if (!e->items[i])

			continue;

		len += scnprintf(buf + len, PAGE_SIZE - len, "%s ", e->items[i]);

		len += sysfs_emit_at(buf, len, "%s ", e->items[i]);

	}



	/* replace last space with a newline */