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From: wangyunjian <wangyunjian@huawei.com>
To: <dev@dpdk.org>, <hemant.agrawal@nxp.com>, <nipun.gupta@nxp.com>
Cc: <jerry.lilijun@huawei.com>, <xudingke@huawei.com>,
	Yunjian Wang <wangyunjian@huawei.com>, <stable@dpdk.org>
Subject: [dpdk-stable] [dpdk-dev] [PATCH] event/dpaa2: fix dereference before null check
Date: Wed, 26 Aug 2020 21:07:40 +0800
Message-ID: <befbb8824171ccb7493fc968ee732263fbc32f52.1598423164.git.wangyunjian@huawei.com> (raw)

From: Yunjian Wang <wangyunjian@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@dpdk.org

Signed-off-by: Yunjian Wang <wangyunjian@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



             reply	other threads:[~2020-08-26 13:07 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-26 13:07 wangyunjian [this message]
2020-10-04 10:41 ` Jerin Jacob
2020-10-04 10:53 ` Nipun Gupta
2020-10-05  9:40   ` Jerin Jacob

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