Adding validation of return code of mlxreg_hotplug_device_create. It could fail in case the requested adapter is not available or if client can not be connected to the adapter. Error is to be reported in case of bad flow. Signed-off-by: Vadim Pasternak <vadimp@xxxxxxxxxxxx> --- drivers/platform/mellanox/mlxreg-hotplug.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) diff --git a/drivers/platform/mellanox/mlxreg-hotplug.c b/drivers/platform/mellanox/mlxreg-hotplug.c index c806451..e852219 100644 --- a/drivers/platform/mellanox/mlxreg-hotplug.c +++ b/drivers/platform/mellanox/mlxreg-hotplug.c @@ -263,13 +263,15 @@ mlxreg_hotplug_work_helper(struct mlxreg_hotplug_priv_data *priv, if (item->inversed) mlxreg_hotplug_device_destroy(data); else - mlxreg_hotplug_device_create(data); + ret = mlxreg_hotplug_device_create(data); } else { if (item->inversed) - mlxreg_hotplug_device_create(data); + ret = mlxreg_hotplug_device_create(data); else mlxreg_hotplug_device_destroy(data); } + if (ret) + dev_err(priv->dev, "Failed to create hotplug device.\n"); } /* Acknowledge event. */ @@ -312,8 +314,11 @@ mlxreg_hotplug_health_work_helper(struct mlxreg_hotplug_priv_data *priv, if (regval == MLXREG_HOTPLUG_HEALTH_MASK) { if ((data->health_cntr++ == MLXREG_HOTPLUG_RST_CNTR) || !priv->after_probe) { - mlxreg_hotplug_device_create(data); - data->attached = true; + ret = mlxreg_hotplug_device_create(data); + if (ret) + dev_err(priv->dev, "Failed to create hotplug device.\n"); + else + data->attached = true; } } else { if (data->attached) { -- 2.1.4