netdev - [PATCH net-next] net/mlx5: Fix check for allocation failure in comp_irqs_request

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Date:   Fri, 31 Mar 2023 10:03:47 +0300
From:   Dan Carpenter <error27@...il.com>
To:     Eli Cohen <elic@...dia.com>
Cc:     Leon Romanovsky <leon@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Jacob Keller <jacob.e.keller@...el.com>,
        Shay Drory <shayd@...dia.com>, netdev@...r.kernel.org,
        linux-rdma@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: [PATCH net-next] net/mlx5: Fix check for allocation failure in
 comp_irqs_request_pci()

This function accidentally dereferences "cpus" instead of returning
directly.

Fixes: b48a0f72bc3e ("net/mlx5: Refactor completion irq request/release code")
Signed-off-by: Dan Carpenter <error27@...il.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/eq.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eq.c b/drivers/net/ethernet/mellanox/mlx5/core/eq.c
index eb41f0abf798..13491246c9e9 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eq.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eq.c
@@ -824,7 +824,7 @@ static int comp_irqs_request_pci(struct mlx5_core_dev *dev)
 	ncomp_eqs = table->num_comp_eqs;
 	cpus = kcalloc(ncomp_eqs, sizeof(*cpus), GFP_KERNEL);
 	if (!cpus)
-		ret = -ENOMEM;
+		return -ENOMEM;
 
 	i = 0;
 	rcu_read_lock();
-- 
2.39.1