[dpdk-dev] [PATCH 2/2] crypto/dpaa2_sec: fix if check on memory allocation

[Gagandeep Singh <g.singh@nxp.com>]

When key length is 0, zmalloc will return NULL pointor
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: akhil.goyal@nxp.com
---
 drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c b/drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c
index cab79db..05b194c 100644
--- 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;
-- 
2.7.4