iio: adc: meson_saradc: replace sprintf() with sysfs_emit()

Update the read_label() function to use sysfs_emit() for generating
labels.

Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/iio/adc/meson_saradc.c b/drivers/iio/adc/meson_saradc.c
index f7e7172ef4f6c2042f9ad54583d399f477ef7f5d..47cd350498a0d42536445ab324cc9249966b37d0 100644 (file)
--- a/drivers/iio/adc/meson_saradc.c
+++ b/drivers/iio/adc/meson_saradc.c
@@ -1181,12 +1181,12 @@ static int read_label(struct iio_dev *indio_dev,
                      char *label)
 {
        if (chan->type == IIO_TEMP)
-               return sprintf(label, "temp-sensor\n");
+               return sysfs_emit(label, "temp-sensor\n");
        if (chan->type == IIO_VOLTAGE && chan->channel >= NUM_MUX_0_VSS)
-               return sprintf(label, "%s\n",
+               return sysfs_emit(label, "%s\n",
                               chan7_mux_names[chan->channel - NUM_MUX_0_VSS]);
        if (chan->type == IIO_VOLTAGE)
-               return sprintf(label, "channel-%d\n", chan->channel);
+               return sysfs_emit(label, "channel-%d\n", chan->channel);
        return 0;
 }