[PATCH] mei: discard messages from not connected client during power down.

[Greg KH]

On Tue, May 29, 2018 at 11:56:16AM +0300, Martin Peres wrote:
> From: Alexander Usyskin <alexander.usyskin at intel.com>
> 
> This fixes regression introduced by
> commit 8d52af6795c0 ("mei: speed up the power down flow")
> 
> In power down or suspend flow a message can still be received
> from the FW because the clients fake disconnection.
> In normal case we interpret messages w/o destination as corrupted
> and link reset is performed in order to clean the channel,
> but during power down link reset is already in progress resulting
> in endless loop. To resolve the issue under power down flow we
> discard messages silently.
> 
> Cc: <stable at vger.kernel.org> 4.16+
> Fixes: 8d52af6795c0 ("mei: speed up the power down flow")
> Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=199541
> Signed-off-by: Alexander Usyskin <alexander.usyskin at intel.com>
> Signed-off-by: Tomas Winkler <tomas.winkler at intel.com>
> ---
>  drivers/misc/mei/interrupt.c | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)

Shouldn't this patch go through the char/misc maintainer?

confused,

greg k-h