Re: [PATCH] thunderbolt: stream: Undo more if the start fails

[Mika Westerberg]

Hi,

On Tue, Oct 27, 2026 at 03:24:52PM +0100, Greg Kroah-Hartman wrote:
> From: Josef Bacik <josef@xxxxxxxxxxxxxx>
> 
> If the receive buffers cannot be allocated or mapped,
> tbstream_dev_start() stops and frees the rings, but
> 
>  - leaves the DMA paths through the XDomain connection enabled, with the
>    hop IDs of rings which no longer exist;
>  - does not release the frame array and the pages which
>    tbstream_dev_alloc_rx_buffers() had allocated and mapped before it
>    failed.
> 
> Fixes: 6db21d817b43 ("thunderbolt: Add support for USB4STREAM")
> Cc: stable <stable@xxxxxxxxxx>
> Cc: Andreas Noever <andreas.noever@xxxxxxxxx>
> Cc: Mika Westerberg <westeri@xxxxxxxxxx>

Do you want to take this directly via USB tree? Then,

Acked-by: Mika Westerberg (Intel) <westeri@xxxxxxxxxx>