From: Deepak Kumar Jain <deepak.k.jain@intel.com>
Date: Wed, 18 May 2016 16:12:38 +0000 (+0100)
Subject: qat: fix null pointer dereferencing
X-Git-Tag: spdx-start~6832
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=61d124fd4607058294a0fe617759428afdedb909;p=dpdk.git

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 495ea1c766..a0846926be 100644
--- 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