From: Marko Kovacevic <marko.kovacevic@intel.com>
Date: Mon, 15 Apr 2019 15:04:49 +0000 (+0100)
Subject: cryptodev: fix uninitialized session clear
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=eb1940c84de0d902bca36f311e09ab1024ed60c1;p=dpdk.git

cryptodev: fix uninitialized session clear

added check to see if a session for a device
has been initialised if it has return 0.

Fixes: 5d6c73dd5938 ("cryptodev: add reference count to session private data")
Cc: stable@dpdk.org

Signed-off-by: Marko Kovacevic <marko.kovacevic@intel.com>
Acked-by: Fiona Trahe <fiona.trahe@intel.com>
---

diff --git a/lib/librte_cryptodev/rte_cryptodev.c b/lib/librte_cryptodev/rte_cryptodev.c
index 2675e1ef7c..00c2cf432f 100644
--- a/lib/librte_cryptodev/rte_cryptodev.c
+++ b/lib/librte_cryptodev/rte_cryptodev.c
@@ -1386,6 +1386,8 @@ rte_cryptodev_sym_session_clear(uint8_t dev_id,
 		return -EINVAL;
 
 	driver_id = dev->driver_id;
+	if (sess->sess_data[driver_id].refcnt == 0)
+		return 0;
 	if (--sess->sess_data[driver_id].refcnt != 0)
 		return -EBUSY;