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From: Navid Emamdoost <navid.emamdoost@gmail.com>
To: unlisted-recipients:; (no To-header on input)
Cc: emamd001@umn.edu, kjlu@umn.edu, smccaman@umn.edu,
	Navid Emamdoost <navid.emamdoost@gmail.com>,
	Saeed Mahameed <saeedm@mellanox.com>,
	Leon Romanovsky <leon@kernel.org>,
	"David S. Miller" <davem@davemloft.net>,
	netdev@vger.kernel.org, linux-rdma@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH] net/mlx5: fix memory leak in mlx5_fw_fatal_reporter_dump
Date: Fri, 27 Sep 2019 17:37:28 -0500	[thread overview]
Message-ID: <20190927223729.18043-1-navid.emamdoost@gmail.com> (raw)

In mlx5_fw_fatal_reporter_dump if mlx5_crdump_collect fails the
allocated memory for cr_data must be released otherwise there will be
memory leak. To fix this, this commit changes the return instruction
into goto error handling.

Fixes: 9b1f29823605 ("net/mlx5: Add support for FW fatal reporter dump")

Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/health.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/health.c b/drivers/net/ethernet/mellanox/mlx5/core/health.c
index d685122d9ff7..c07f3154437c 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/health.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/health.c
@@ -572,7 +572,7 @@ mlx5_fw_fatal_reporter_dump(struct devlink_health_reporter *reporter,
 		return -ENOMEM;
 	err = mlx5_crdump_collect(dev, cr_data);
 	if (err)
-		return err;
+		goto free_data;
 
 	if (priv_ctx) {
 		struct mlx5_fw_reporter_ctx *fw_reporter_ctx = priv_ctx;
-- 
2.17.1


             reply	other threads:[~2019-09-27 22:37 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-27 22:37 Navid Emamdoost [this message]
2019-09-28  6:07 ` [PATCH] net/mlx5: fix memory leak in mlx5_fw_fatal_reporter_dump Leon Romanovsky
2019-10-15 20:33 ` Saeed Mahameed

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