1 files changed, 2 insertions, 2 deletions

diff --git a/crypto/scatterwalk.c b/crypto/scatterwalk.c
index 50c9461e8cc6..47ac90e615f4 100644
--- a/crypto/scatterwalk.c
+++ b/crypto/scatterwalk.c
@@ -100,7 +100,7 @@ void scatterwalk_done(struct scatter_walk *walk, int out, int more)
 int scatterwalk_copychunks(void *buf, struct scatter_walk *walk,
                            size_t nbytes, int out)
 {
-        do {
+        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;
@@ -108,7 +108,7 @@ int scatterwalk_copychunks(void *buf, struct scatter_walk *walk,
                 scatterwalk_unmap(walk, out);
                 scatterwalk_pagedone(walk, out, 1);
                 scatterwalk_map(walk, out);
-        } while (nbytes > walk->len_this_page);
+        }
 
         memcpy_dir(buf, walk->data, nbytes, out);
         return nbytes;