On 4/4/25 5:02 AM, Shuai Xue wrote:
> The idxd_cleanup_internals() function only decreases the reference count
> of groups, engines, and wqs but is missing the step to release memory
> resources.
>
> To fix this, use the cleanup helper to properly release the memory
> resources.
>
> Fixes: ddf742d4f3f1 ("dmaengine: idxd: Add missing cleanup for early error out in probe call")
> Cc: stable@vger.kernel.org
> Signed-off-by: Shuai Xue <xueshuai@linux.alibaba.com>
> Reviewed-by: Fenghua Yu <fenghuay@nvidia.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
> ---
> drivers/dma/idxd/init.c | 11 +++--------
> 1 file changed, 3 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/dma/idxd/init.c b/drivers/dma/idxd/init.c
> index a40fb2fd5006..f8129d2d53f1 100644
> --- a/drivers/dma/idxd/init.c
> +++ b/drivers/dma/idxd/init.c
> @@ -407,14 +407,9 @@ static int idxd_setup_groups(struct idxd_device *idxd)
>
> static void idxd_cleanup_internals(struct idxd_device *idxd)
> {
> - int i;
> -
> - for (i = 0; i < idxd->max_groups; i++)
> - put_device(group_confdev(idxd->groups[i]));
> - for (i = 0; i < idxd->max_engines; i++)
> - put_device(engine_confdev(idxd->engines[i]));
> - for (i = 0; i < idxd->max_wqs; i++)
> - put_device(wq_confdev(idxd->wqs[i]));
> + idxd_clean_groups(idxd);
> + idxd_clean_engines(idxd);
> + idxd_clean_wqs(idxd);
> destroy_workqueue(idxd->wq);
> }
>