Re: [PATCH-for-5.0 11/12] hw/net/xilinx_axienet: Add missing error-propagation code

[Peter Maydell]

On Wed, 25 Mar 2020 at 19:19, Philippe Mathieu-Daudé <f4...@amsat.org> wrote:
>
> Running the coccinelle script produced:
>
>   $ spatch \
>     --macro-file scripts/cocci-macro-file.h --include-headers \
>     --sp-file 
> scripts/coccinelle/object_property_missing_error_propagate.cocci \
>     --keep-comments --smpl-spacing --dir hw
>
>   [[manual check required: error_propagate() might be missing in 
> object_property_set_link() hw/net/xilinx_axienet.c:969:4]]
>
> Add the missing error_propagate() after manual review.
>
> Signed-off-by: Philippe Mathieu-Daudé <f4...@amsat.org>
> ---
>  hw/net/xilinx_axienet.c | 3 +++
>  1 file changed, 3 insertions(+)
>
> diff --git a/hw/net/xilinx_axienet.c b/hw/net/xilinx_axienet.c
> index 704788811a..f11510a71e 100644
> --- a/hw/net/xilinx_axienet.c
> +++ b/hw/net/xilinx_axienet.c
> @@ -948,39 +948,42 @@ static NetClientInfo net_xilinx_enet_info = {
>  static void xilinx_enet_realize(DeviceState *dev, Error **errp)
>  {
>      XilinxAXIEnet *s = XILINX_AXI_ENET(dev);
>      XilinxAXIEnetStreamSlave *ds = 
> XILINX_AXI_ENET_DATA_STREAM(&s->rx_data_dev);
>      XilinxAXIEnetStreamSlave *cs = XILINX_AXI_ENET_CONTROL_STREAM(
>                                                              
> &s->rx_control_dev);
>      Error *local_err = NULL;
>
>      object_property_add_link(OBJECT(ds), "enet", "xlnx.axi-ethernet",
>                               (Object **) &ds->enet,
>                               object_property_allow_set_link,
>                               OBJ_PROP_LINK_STRONG,
>                               &local_err);

Again, Coccinelle seems to have not spotted the missing error check here...

>      object_property_add_link(OBJECT(cs), "enet", "xlnx.axi-ethernet",
>                               (Object **) &cs->enet,
>                               object_property_allow_set_link,
>                               OBJ_PROP_LINK_STRONG,
>                               &local_err);
>      if (local_err) {
>          goto xilinx_enet_realize_fail;
>      }
>      object_property_set_link(OBJECT(ds), OBJECT(s), "enet", &local_err);
> +    if (local_err) {
> +        goto xilinx_enet_realize_fail;
> +    }
>      object_property_set_link(OBJECT(cs), OBJECT(s), "enet", &local_err);
>      if (local_err) {
>          goto xilinx_enet_realize_fail;
>      }

thanks
-- PMM