From: Navid Emamdoost <navid.emamdoost@gmail.com>

Date: Tue, 24 Sep 2019 22:20:34 -0500

Subject: net/mlx5: prevent memory leak in mlx5_fpga_conn_create_cq

Patch-mainline: v5.4-rc6

Git-commit: c8c2a057fdc7de1cd16f4baa51425b932a42eb39

References: bsc#1046303 FATE#322944

In mlx5_fpga_conn_create_cq if mlx5_vector2eqn fails the allocated

memory should be released.

Fixes: 537a50574175 ("net/mlx5: FPGA, Add high-speed connection routines")

Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com>

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>

Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>

---

 drivers/net/ethernet/mellanox/mlx5/core/fpga/conn.c |    4 +++-

 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/drivers/net/ethernet/mellanox/mlx5/core/fpga/conn.c

+++ b/drivers/net/ethernet/mellanox/mlx5/core/fpga/conn.c

@@ -461,8 +461,10 @@ static int mlx5_fpga_conn_create_cq(stru

 	}

 	err = mlx5_vector2eqn(mdev, smp_processor_id(), &eqn, &irqn);

-	if (err)

+	if (err) {

+		kvfree(in);

 		goto err_cqwq;

+	}

 	cqc = MLX5_ADDR_OF(create_cq_in, in, cq_context);

 	MLX5_SET(cqc, cqc, log_cq_size, ilog2(cq_size));