crypto: ccm - Fix handling of null assoc data

[linux-2.6-omap-h63xx.git] / crypto / ccm.c

diff --git a/crypto/ccm.c b/crypto/ccm.c
index 7cf7e5a6b7812688b278f643a84be3845089a650..c36d654cf56a0f08ef9ef4e4cd42eaa85047a6cd 100644 (file)
--- a/crypto/ccm.c
+++ b/crypto/ccm.c
@@ -266,6 +266,8 @@ static int crypto_ccm_auth(struct aead_request *req, struct scatterlist *plain,
        if (assoclen) {
                pctx->ilen = format_adata(idata, assoclen);
                get_data_to_compute(cipher, pctx, req->assoc, req->assoclen);
+       } else {
+               pctx->ilen = 0;
        }
 
        /* compute plaintext into mac */