crypto/dpaa2_sec: fix memory allocation check

When key length is 0, zmalloc will return NULL pointer
and in that case it should not return NOMEM.
So in this patch, adding a check on key length.

Fixes: 8d1f3a5d751b ("crypto/dpaa2_sec: support crypto operation")
Cc: stable@dpdk.org
Signed-off-by: Gagandeep Singh <g.singh@nxp.com>
Acked-by: Akhil Goyal <akhil.goyal@nxp.com>

diff --git a/drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c b/drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c
index cab79db..05b194c 100644 (file)
--- a/drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c
+++ b/drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c
@@ -1842,7 +1842,7 @@ dpaa2_sec_cipher_init(struct rte_cryptodev *dev,
        session->ctxt_type = DPAA2_SEC_CIPHER;
        session->cipher_key.data = rte_zmalloc(NULL, xform->cipher.key.length,
                        RTE_CACHE_LINE_SIZE);
-       if (session->cipher_key.data == NULL) {
+       if (session->cipher_key.data == NULL && xform->cipher.key.length > 0) {
                DPAA2_SEC_ERR("No Memory for cipher key");
                rte_free(priv);
                return -ENOMEM;