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From: Harman Kalra <hkalra@marvell.com>
To: <dev@dpdk.org>, Matan Azrad <matan@nvidia.com>,
	Viacheslav Ovsiienko <viacheslavo@nvidia.com>
Cc: <david.marchand@redhat.com>, <john.mcnamara@intel.com>,
	Harman Kalra <hkalra@marvell.com>
Subject: [dpdk-dev] [PATCH 6/6] net/mlx4: fix dereference after null check
Date: Mon, 1 Nov 2021 23:23:37 +0530	[thread overview]
Message-ID: <20211101175337.83358-6-hkalra@marvell.com> (raw)
In-Reply-To: <20211101175337.83358-1-hkalra@marvell.com>

This patch fixes coverity issue by adding a NULL check

Coverity issue: 373687
Fixes: d61138d4f0e2 ("drivers: remove direct access to interrupt handle")

Signed-off-by: Harman Kalra <hkalra@marvell.com>
---
 drivers/net/mlx4/mlx4.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/mlx4/mlx4.c b/drivers/net/mlx4/mlx4.c
index cccc71f757..3f3c4a7c72 100644
--- a/drivers/net/mlx4/mlx4.c
+++ b/drivers/net/mlx4/mlx4.c
@@ -1112,7 +1112,8 @@ mlx4_pci_probe(struct rte_pci_driver *pci_drv, struct rte_pci_device *pci_dev)
 		prev_dev = eth_dev;
 		continue;
 port_error:
-		rte_intr_instance_free(priv->intr_handle);
+		if (priv != NULL)
+			rte_intr_instance_free(priv->intr_handle);
 		rte_free(priv);
 		if (eth_dev != NULL)
 			eth_dev->data->dev_private = NULL;
-- 
2.18.0


  parent reply	other threads:[~2021-11-01 17:54 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-11-01 17:53 [dpdk-dev] [PATCH 1/6] interrupts: fix argument cannot be negative Harman Kalra
2021-11-01 17:53 ` [dpdk-dev] [PATCH 2/6] lib: " Harman Kalra
2021-11-01 17:53 ` [dpdk-dev] [PATCH 3/6] drivers: fix bad bit shift operation Harman Kalra
2021-11-02  1:22   ` Wang, Haiyue
2021-11-01 17:53 ` [dpdk-dev] [PATCH 4/6] drivers: fix argument cannot be negative Harman Kalra
2021-11-01 17:53 ` [dpdk-dev] [PATCH 5/6] drivers: fix improper use of negative value Harman Kalra
2021-11-01 17:53 ` Harman Kalra [this message]
2021-11-02  7:34   ` [dpdk-dev] [PATCH 6/6] net/mlx4: fix dereference after null check Slava Ovsiienko
2021-11-08 16:32     ` David Marchand

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