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It will be pushed if I get no objections before 07/28/18. So please shout if anyone has objections. Thanks. Yongseok --- >>From 8e47ba2b073a2cb6eb87b97e81436346f729737c Mon Sep 17 00:00:00 2001 From: Yongseok Koh Date: Tue, 19 Jun 2018 16:13:13 -0700 Subject: [PATCH] net/mlx5: fix error number handling [ upstream commit 5cffc8b28dc874d04df7675abf7187c271524f70 ] rte_errno should be saved only if error has occurred because rte_errno could have garbage value. Fixes: a6d83b6a9209 ("net/mlx5: standardize on negative errno values") Signed-off-by: Yongseok Koh Acked-by: Nelio Laranjeiro --- drivers/net/mlx5/mlx5_flow.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/net/mlx5/mlx5_flow.c b/drivers/net/mlx5/mlx5_flow.c index 57b654c35..d261ba13b 100644 --- a/drivers/net/mlx5/mlx5_flow.c +++ b/drivers/net/mlx5/mlx5_flow.c @@ -2991,15 +2991,17 @@ wrong_flow: /* The flow does not match. */ continue; } - ret = rte_errno; /* Save rte_errno before cleanup. */ if (flow) mlx5_flow_list_destroy(dev, &priv->flows, flow); exit: + if (ret) + ret = rte_errno; /* Save rte_errno before cleanup. */ for (i = 0; i != hash_rxq_init_n; ++i) { if (parser.queue[i].ibv_attr) rte_free(parser.queue[i].ibv_attr); } - rte_errno = ret; /* Restore rte_errno. */ + if (ret) + rte_errno = ret; /* Restore rte_errno. */ return -rte_errno; } -- 2.11.0