From: Michael Baum <michaelba@nvidia.com>
Date: Wed, 3 Nov 2021 18:35:08 +0000 (+0200)
Subject: crypto/mlx5: fix login release in probing and removal
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=801b4885c560dada87433ad282e5a9a71bd215ae;p=dpdk.git

crypto/mlx5: fix login release in probing and removal

The probe function creates DevX object named login and saves pointer to
it in priv structure.

The remove function releases first the priv structure and then releases
the login object.
However, the pointer to login object is field of priv structure, which
is invalid.

Release the login object and then release the priv structure.

Fixes: debb27ea3442 ("crypto/mlx5: create login object using DevX")
Cc: stable@dpdk.org

Signed-off-by: Michael Baum <michaelba@nvidia.com>
Reviewed-by: Viacheslav Ovsiienko <viacheslavo@nvidia.com>
Acked-by: Matan Azrad <matan@nvidia.com>
---

diff --git a/drivers/crypto/mlx5/mlx5_crypto.c b/drivers/crypto/mlx5/mlx5_crypto.c
index 44dae37aec..36d41805c5 100644
--- a/drivers/crypto/mlx5/mlx5_crypto.c
+++ b/drivers/crypto/mlx5/mlx5_crypto.c
@@ -883,12 +883,6 @@ mlx5_crypto_dev_probe(struct mlx5_common_device *cdev)
 		DRV_LOG(ERR, "Failed to parse devargs.");
 		return -rte_errno;
 	}
-	login = mlx5_devx_cmd_create_crypto_login_obj(cdev->ctx,
-						      &devarg_prms.login_attr);
-	if (login == NULL) {
-		DRV_LOG(ERR, "Failed to configure login.");
-		return -rte_errno;
-	}
 	crypto_dev = rte_cryptodev_pmd_create(ibdev_name, cdev->dev,
 					      &init_params);
 	if (crypto_dev == NULL) {
@@ -904,12 +898,20 @@ mlx5_crypto_dev_probe(struct mlx5_common_device *cdev)
 	crypto_dev->driver_id = mlx5_crypto_driver_id;
 	priv = crypto_dev->data->dev_private;
 	priv->cdev = cdev;
-	priv->login_obj = login;
 	priv->crypto_dev = crypto_dev;
 	if (mlx5_crypto_uar_prepare(priv) != 0) {
 		rte_cryptodev_pmd_destroy(priv->crypto_dev);
 		return -1;
 	}
+	login = mlx5_devx_cmd_create_crypto_login_obj(cdev->ctx,
+						      &devarg_prms.login_attr);
+	if (login == NULL) {
+		DRV_LOG(ERR, "Failed to configure login.");
+		mlx5_crypto_uar_release(priv);
+		rte_cryptodev_pmd_destroy(priv->crypto_dev);
+		return -rte_errno;
+	}
+	priv->login_obj = login;
 	priv->keytag = rte_cpu_to_be_64(devarg_prms.keytag);
 	priv->max_segs_num = devarg_prms.max_segs_num;
 	priv->umr_wqe_size = sizeof(struct mlx5_wqe_umr_bsf_seg) +
@@ -947,9 +949,9 @@ mlx5_crypto_dev_remove(struct mlx5_common_device *cdev)
 		TAILQ_REMOVE(&mlx5_crypto_priv_list, priv, next);
 	pthread_mutex_unlock(&priv_list_lock);
 	if (priv) {
+		claim_zero(mlx5_devx_cmd_destroy(priv->login_obj));
 		mlx5_crypto_uar_release(priv);
 		rte_cryptodev_pmd_destroy(priv->crypto_dev);
-		claim_zero(mlx5_devx_cmd_destroy(priv->login_obj));
 	}
 	return 0;
 }