qat: fix null pointer dereferencing

Fix null pointer dereferencing while clearing session

Coverity issue: 126586
Fixes: 1703e94ac5ce ("qat: add driver for QuickAssist devices")

Signed-off-by: Deepak Kumar Jain <deepak.k.jain@intel.com>

diff --git a/drivers/crypto/qat/qat_crypto.c b/drivers/crypto/qat/qat_crypto.c
index 495ea1c..a084692 100644 (file)
--- a/drivers/crypto/qat/qat_crypto.c
+++ b/drivers/crypto/qat/qat_crypto.c
@@ -276,14 +276,15 @@ void qat_crypto_sym_clear_session(struct rte_cryptodev *dev,
                void *session)
 {
        struct qat_session *sess = session;
-       phys_addr_t cd_paddr = sess->cd_paddr;
+       phys_addr_t cd_paddr;
 
        PMD_INIT_FUNC_TRACE();
        if (session) {
+               cd_paddr = sess->cd_paddr;
                memset(sess, 0, qat_crypto_sym_get_session_private_size(dev));
-
                sess->cd_paddr = cd_paddr;
-       }
+       } else
+               PMD_DRV_LOG(ERR, "NULL session");
 }
 
 static int