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Date: Wed, 14 Jun 2017 13:41:52 +0300 From: Dan Carpenter <dan.carpenter@...cle.com> To: Yotam Gigi <yotamg@...lanox.com> Cc: netdev@...r.kernel.org, kernel-janitors@...r.kernel.org Subject: [PATCH net-next] net/mlxfw: fix a NULL dereference If we hit this error path we end up returning ERR_PTR(0) which is NULL. The caller is not expecting that so it results in a NULL dereference. Fixes: 410ed13cae39 ("Add the mlxfw module for Mellanox firmware flash process") Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com> diff --git a/drivers/net/ethernet/mellanox/mlxfw/mlxfw_mfa2.c b/drivers/net/ethernet/mellanox/mlxfw/mlxfw_mfa2.c index 628150d28061..993cb5ba934e 100644 --- a/drivers/net/ethernet/mellanox/mlxfw/mlxfw_mfa2.c +++ b/drivers/net/ethernet/mellanox/mlxfw/mlxfw_mfa2.c @@ -594,6 +594,7 @@ struct mlxfw_mfa2_component * if (memcmp(comp_data->buff, mlxfw_mfa2_comp_magic, mlxfw_mfa2_comp_magic_len) != 0) { pr_err("Component has wrong magic\n"); + err = -EINVAL; goto err_out; }
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