- if (buf != walk->data) {
- while (nbytes > walk->len_this_page) {
- memcpy_dir(buf, walk->data, walk->len_this_page, out);
- buf += walk->len_this_page;
- nbytes -= walk->len_this_page;
-
- crypto_kunmap(walk->data, out);
- scatterwalk_pagedone(walk, out, 1);
- scatterwalk_map(walk, out);
- }
-
- memcpy_dir(buf, walk->data, nbytes, out);
+ while (nbytes > walk->len_this_page) {
+ memcpy_dir(buf, walk->data, walk->len_this_page, out);
+ buf += walk->len_this_page;
+ nbytes -= walk->len_this_page;
+
+ scatterwalk_unmap(walk, out);
+ scatterwalk_pagedone(walk, out, 1);
+ scatterwalk_map(walk, out);