[dpdk-dev] [PATCH] drivers/aesni_gcm: fix zero data operation

[Pablo de Lara]

When data length passed to the PMD was zero,
the PMD was trying to get more data from a non-existent
next segment.

Fixes: 9c2a5775c028 ("crypto/aesni_gcm: migrate from MB library to ISA-L")
Cc: sta...@dpdk.org

Signed-off-by: Pablo de Lara <pablo.de.lara.gua...@intel.com>
---
 drivers/crypto/aesni_gcm/aesni_gcm_pmd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/crypto/aesni_gcm/aesni_gcm_pmd.c 
b/drivers/crypto/aesni_gcm/aesni_gcm_pmd.c
index e051624..5c9004f 100644
--- a/drivers/crypto/aesni_gcm/aesni_gcm_pmd.c
+++ b/drivers/crypto/aesni_gcm/aesni_gcm_pmd.c
@@ -224,7 +224,7 @@ process_gcm_crypto_op(struct aesni_gcm_qp *qp, struct 
rte_crypto_op *op,
 
        RTE_ASSERT(m_src != NULL);
 
-       while (offset >= m_src->data_len) {
+       while (offset >= m_src->data_len && data_length != 0) {
                offset -= m_src->data_len;
                m_src = m_src->next;
 
-- 
2.9.4