On Thu, Aug 24, 2023 at 04:09:54PM +0300, Alexandra Diupina wrote:
> iommu_device_register always returns 0 in 4.11-5.12, so
> we need to remove redundant comparison with 0
>
> Found by Linux Verification Center (linuxtesting.org) with SVACE.
>
> Fixes: b16c0170b53c ("iommu/mediatek: Make use of iommu_device_register interface")
> Signed-off-by: Alexandra Diupina <adiupina@xxxxxxxxxxxxx>
> ---
> drivers/iommu/mtk_iommu.c | 4 +---
> 1 file changed, 1 insertion(+), 3 deletions(-)
>
> diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
> index 051815c9d2bb..208c47218b75 100644
> --- a/drivers/iommu/mtk_iommu.c
> +++ b/drivers/iommu/mtk_iommu.c
> @@ -748,9 +748,7 @@ static int mtk_iommu_probe(struct platform_device *pdev)
> iommu_device_set_ops(&data->iommu, &mtk_iommu_ops);
> iommu_device_set_fwnode(&data->iommu, &pdev->dev.of_node->fwnode);
>
> - ret = iommu_device_register(&data->iommu);
> - if (ret)
> - return ret;
> + iommu_device_register(&data->iommu);
>
> spin_lock_init(&data->tlb_lock);
> list_add_tail(&data->list, &m4ulist);
> --
> 2.30.2
>
<formletter>
This is not the correct way to submit patches for inclusion in the
stable kernel tree. Please read:
https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html
for how to do this properly.
</formletter>
