RE: [PATCH v2] net/mlx5: fix memleak for resource object

[Dariusz Sosnowski <dsosnowski@nvidia.com>]

Hi,

Sorry for the delayed review. Just two small comments.

> -----Original Message-----
> From: Mahmoud Maatuq <mahmoudmatook.mm@gmail.com>
> Sent: Monday, June 24, 2024 21:42
> To: Dariusz Sosnowski <dsosnowski@nvidia.com>; Slava Ovsiienko
> <viacheslavo@nvidia.com>; Bing Zhao <bingz@nvidia.com>; Ori Kam
> <orika@nvidia.com>; Suanming Mou <suanmingm@nvidia.com>; Matan Azrad
> <matan@nvidia.com>; Maayan Kashani <mkashani@nvidia.com>
> Cc: dev@dpdk.org; Mahmoud Maatuq <mahmoudmatook.mm@gmail.com>
> Subject: [PATCH v2] net/mlx5: fix memleak for resource object 

I think for clarity what resource was leaking, a better title would be:
    net/mlx5: fix matcher object memory leak

> 
> this makes sure that the allocated resource object is freed for all branches that
> return NULL

Typo: s/this/This/
Also, s/allocated resource object/allocated matcher object/
Also, please add a period at the end of the sentence.

> Coverity issue: 426424
> Fixes: 27d171b88031 ("net/mlx5: abstract flow action and enable reconfigure")
> Cc: mkashani@nvidia.com
> 
> Signed-off-by: Mahmoud Maatuq <mahmoudmatook.mm@gmail.com>
> ---
>  drivers/net/mlx5/mlx5_flow_dv.c | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/net/mlx5/mlx5_flow_dv.c b/drivers/net/mlx5/mlx5_flow_dv.c
> index d46beffd4c..8a0d58cb05 100644
> --- a/drivers/net/mlx5/mlx5_flow_dv.c
> +++ b/drivers/net/mlx5/mlx5_flow_dv.c
> @@ -12010,9 +12010,12 @@ flow_matcher_create_cb(void *tool_ctx, void
> *cb_ctx)
>                 items = *((const struct rte_flow_item **)(ctx->data2));
>                 resource->matcher_object = mlx5dr_bwc_matcher_create
>                                 (resource->group->tbl, resource->priority, items);
> -               if (!(resource->matcher_object))
> +               if (!resource->matcher_object) {
> +                       mlx5_free(resource);
>                         return NULL;
> +               }
>  #else
> +               mlx5_free(resource);
>                 return NULL;
>  #endif
>         }
> --
> 2.43.0

Best regards,
Dariusz Sosnowski