[dpdk-stable] [dpdk-dev] [PATCH] event/dpaa2: fix dereference before null check

[wangyunjian]

From: Yunjian Wang <wangyunjian at huawei.com>

Coverity flags that 'portal' variable is used before
it's checked for NULL. This patch fixes this issue.

Coverity issue: 323516
Fixes: 4ab57b042e7c ("event/dpaa2: affine portal at runtime during I/O")
Cc: stable at dpdk.org

Signed-off-by: Yunjian Wang <wangyunjian at huawei.com>
---
 drivers/event/dpaa2/dpaa2_eventdev.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/event/dpaa2/dpaa2_eventdev.c b/drivers/event/dpaa2/dpaa2_eventdev.c
index 3ae4441ee..f7383ca73 100644
--- a/drivers/event/dpaa2/dpaa2_eventdev.c
+++ b/drivers/event/dpaa2/dpaa2_eventdev.c
@@ -569,14 +569,14 @@ dpaa2_eventdev_port_release(void *port)
 
 	EVENTDEV_INIT_FUNC_TRACE();
 
+	if (portal == NULL)
+		return;
+
 	/* TODO: Cleanup is required when ports are in linked state. */
 	if (portal->is_port_linked)
 		DPAA2_EVENTDEV_WARN("Event port must be unlinked before release");
 
-	if (portal)
-		rte_free(portal);
-
-	portal = NULL;
+	rte_free(portal);
 }
 
 static int
-- 
2.23.0