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-rw-r--r--crypto/chacha20_generic.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/crypto/chacha20_generic.c b/crypto/chacha20_generic.c
index 8b3c04d625c3..4a45fa4890c0 100644
--- a/crypto/chacha20_generic.c
+++ b/crypto/chacha20_generic.c
@@ -91,9 +91,14 @@ int crypto_chacha20_crypt(struct skcipher_request *req)
crypto_chacha20_init(state, ctx, walk.iv);
while (walk.nbytes > 0) {
+ unsigned int nbytes = walk.nbytes;
+
+ if (nbytes < walk.total)
+ nbytes = round_down(nbytes, walk.stride);
+
chacha20_docrypt(state, walk.dst.virt.addr, walk.src.virt.addr,
- walk.nbytes);
- err = skcipher_walk_done(&walk, 0);
+ nbytes);
+ err = skcipher_walk_done(&walk, walk.nbytes - nbytes);
}
return err;