iio:callback buffer: free the scan_mask

Reported-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

diff --git a/drivers/iio/buffer_cb.c b/drivers/iio/buffer_cb.c
index 9201022945e966719c4322e9242d0582316a9eee..9d19ba74f22bd92125501e2827ef51bbae59da13 100644 (file)
--- 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);
 }