[PATCH 6/6] serial: stm32: synchronize RX DMA channel in shutdown

[Greg Kroah-Hartman]

On Thu, Aug 03, 2023 at 03:01:34PM +0200, Valentin Caron wrote:
> From: Amelie Delaunay <amelie.delaunay at foss.st.com>
> 
> In shutdown, RX DMA channel is terminated. If the DMA RX callback is
> scheduled but not yet executed, while a new RX DMA transfer is started, the
> callback can be executed, and then disturb the ongoing RX DMA transfer.
> To avoid such a case, call dmaengine_synchronize in shutdown, after the
> DMA RX channel is terminated.
> 
> Signed-off-by: Amelie Delaunay <amelie.delaunay at foss.st.com>
> ---

You can't forward on a patch from someone else and not sign-off on it
yourself :(

Please fix up and resend the series.

thanks,

greg k-h