tools:iio:generic_buffer: fix order of freeing data

data gets allocated before buffer_access, so it should be freed in reverse
order. Otherwise, if allocating buffer_access fails, an attempt to free it
would be taken, which should not happen.

Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
diff --git a/tools/iio/generic_buffer.c b/tools/iio/generic_buffer.c
index f805493..15f2a40 100644
--- a/tools/iio/generic_buffer.c
+++ b/tools/iio/generic_buffer.c
@@ -345,10 +345,10 @@
 
 error_close_buffer_access:
 	close(fp);
-error_free_data:
-	free(data);
 error_free_buffer_access:
 	free(buffer_access);
+error_free_data:
+	free(data);
 error_free_buf_dir_name:
 	free(buf_dir_name);
 error_free_triggername: