diff --git a/drivers/net/ethernet/mellanox/mlx5/core/dev.c b/drivers/net/ethernet/mellanox/mlx5/core/dev.c
index a9166cd85013..8de118adfb54 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/dev.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/dev.c
@@ -320,6 +320,16 @@ int mlx5_attach_device(struct mlx5_core_dev *dev)
 			}
 		} else {
 			adev = &priv->adev[i]->adev;
+
+			/* Pay attention that this is not PCI driver that
+			 * mlx5_core_dev is connected, but auxiliary driver.
+			 *
+			 * Here we can race of module unload with devlink
+			 * reload, but we don't need to take extra lock because
+			 * we are holding global mlx5_intf_mutex.
+			 */
+			if (!adev->dev.driver)
+				continue;
 			adrv = to_auxiliary_drv(adev->dev.driver);
 
 			if (adrv->resume)
@@ -350,6 +360,10 @@ void mlx5_detach_device(struct mlx5_core_dev *dev)
 			continue;
 
 		adev = &priv->adev[i]->adev;
+		/* Auxiliary driver was unbind manually through sysfs */
+		if (!adev->dev.driver)
+			goto skip_suspend;
+
 		adrv = to_auxiliary_drv(adev->dev.driver);
 
 		if (adrv->suspend) {
@@ -357,6 +371,7 @@ void mlx5_detach_device(struct mlx5_core_dev *dev)
 			continue;
 		}
 
+skip_suspend:
 		del_adev(&priv->adev[i]->adev);
 		priv->adev[i] = NULL;
 	}