Re: [PATCH] powerpc/ps3: Fix map failure path in dma_ioc0_map_pages()

[Geert Uytterhoeven]

On Sat, 11 Jul 2026 at 15:10, Thorsten Blum <thorsten.blum@xxxxxxxxx> wrote:
> If lv1_put_iopte() fails in dma_ioc0_map_pages(), the error path
> decrements iopage but keeps using the failed mapping's offset. As a
> result, it repeatedly tries to invalidate the failed IOPTE slot and
> leaves the already installed IOPTEs valid.
>
> Recompute offset and invalidate the installed IOPTEs instead.
>
> Fixes: 6bb5cf102541 ("[POWERPC] PS3: System-bus rework")
> Cc: stable@xxxxxxxxxxxxxxx
> Signed-off-by: Thorsten Blum <thorsten.blum@xxxxxxxxx>

Reviewed-by: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

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