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: Lars-Peter Clausen <lars@xxxxxxxxxx>
---
drivers/iio/industrialio-core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index 058874af1242..e0fdf9141e09 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -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 */
--
2.20.1
