linux-kernel - Re: [PATCH v2] usb: typec: class: fix typec_altmode_put

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Date:   Tue, 28 Nov 2023 08:07:37 +0000
From:   Greg KH <gregkh@...uxfoundation.org>
To:     RD Babiera <rdbabiera@...gle.com>
Cc:     heikki.krogerus@...ux.intel.com, linux-usb@...r.kernel.org,
        linux-kernel@...r.kernel.org, badhri@...gle.com,
        stable@...r.kernel.org
Subject: Re: [PATCH v2] usb: typec: class: fix typec_altmode_put_partner to
 put plugs

On Mon, Nov 27, 2023 at 09:09:52PM +0000, RD Babiera wrote:
> When typec_altmode_put_partner is called by a plug altmode upon release,
> the port altmode the plug belongs to will not remove its reference to the
> plug. The check to see if the altmode being released evaluates against the
> released altmode's partner instead of the calling altmode itself, so change
> adev in typec_altmode_put_partner to properly refer to the altmode being
> released.
> 
> typec_altmode_set_partner is not run for port altmodes, so also add a check
> in typec_altmode_release to prevent typec_altmode_put_partner() calls on
> port altmode release.
> 
> ---
> Changes since v1:
> * Changed commit message for clarity
> * Added check to typec_altmode_release to only call put_partner if altmode
> belongs to port partner or plug
> ---

This info all goes below the following lines:

> 
> Fixes: 8a37d87d72f0 ("usb: typec: Bus type for alternate modes")
> Cc: stable@...r.kernel.org
> Signed-off-by: RD Babiera <rdbabiera@...gle.com>
> ---

Down here, otherwise if you try to apply this patch, your signed-off-by
lines are removed from the patch, right?

As-is, this can not be applied at all :(

Please fix up, thanks.

greg k-h