[PATCH] drm/amd/pm: fix a memleak in aldebaran_tables_init

[Alex Deucher]

Applied.  Thanks!

On Thu, Nov 23, 2023 at 3:08 AM Dinghao Liu <dinghao.liu at zju.edu.cn> wrote:
>
> When kzalloc() for smu_table->ecc_table fails, we should free
> the previously allocated resources to prevent memleak.
>
> Fixes: edd794208555 ("drm/amd/pm: add message smu to get ecc_table v2")
> Signed-off-by: Dinghao Liu <dinghao.liu at zju.edu.cn>
> ---
>  drivers/gpu/drm/amd/pm/swsmu/smu13/aldebaran_ppt.c | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu13/aldebaran_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu13/aldebaran_ppt.c
> index 1a6675d70a4b..f1440869d1ce 100644
> --- a/drivers/gpu/drm/amd/pm/swsmu/smu13/aldebaran_ppt.c
> +++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/aldebaran_ppt.c
> @@ -257,8 +257,11 @@ static int aldebaran_tables_init(struct smu_context *smu)
>         }
>
>         smu_table->ecc_table = kzalloc(tables[SMU_TABLE_ECCINFO].size, GFP_KERNEL);
> -       if (!smu_table->ecc_table)
> +       if (!smu_table->ecc_table) {
> +               kfree(smu_table->metrics_table);
> +               kfree(smu_table->gpu_metrics_table);
>                 return -ENOMEM;
> +       }
>
>         return 0;
>  }
> --
> 2.17.1
>