diff --git a/drivers/iio/buffer_cb.c b/drivers/iio/buffer_cb.c
index 9201022945e9..9d19ba74f22b 100644
--- a/drivers/iio/buffer_cb.c
+++ b/drivers/iio/buffer_cb.c
@@ -64,7 +64,7 @@ struct iio_cb_buffer *iio_channel_get_all_cb(struct device *dev,
 	while (chan->indio_dev) {
 		if (chan->indio_dev != indio_dev) {
 			ret = -EINVAL;
-			goto error_release_channels;
+			goto error_free_scan_mask;
 		}
 		set_bit(chan->channel->scan_index,
 			cb_buff->buffer.scan_mask);
@@ -73,6 +73,8 @@ struct iio_cb_buffer *iio_channel_get_all_cb(struct device *dev,
 
 	return cb_buff;
 
+error_free_scan_mask:
+	kfree(cb_buff->buffer.scan_mask);
 error_release_channels:
 	iio_channel_release_all(cb_buff->channels);
 error_free_cb_buff:
@@ -100,6 +102,7 @@ EXPORT_SYMBOL_GPL(iio_channel_stop_all_cb);
 
 void iio_channel_release_all_cb(struct iio_cb_buffer *cb_buff)
 {
+	kfree(cb_buff->buffer.scan_mask);
 	iio_channel_release_all(cb_buff->channels);
 	kfree(cb_buff);
 }