linux-kernel - Re: [PATCH] usb: musb: Call musb_platform_exit from musb

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Date:   Thu, 19 Jul 2018 10:37:06 -0500
From:   Bin Liu <b-liu@...com>
To:     Jagan Teki <jagan@...rulasolutions.com>
CC:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        <linux-usb@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] usb: musb: Call musb_platform_exit from musb_stop

Hi,

On Thu, Jul 19, 2018 at 03:40:38PM +0530, Jagan Teki wrote:
> musb stop is musb core call during unregister or shutting down
> gadget or host musb. For graceful exit add musb_platform_exit
> on musb_stop so-that it can exit the musb platform driver as well.

Thanks for the patch. but musb_stop() is called in the .udc_stop() and
host .stop() hooks, which can stop (and restart) at any time by the udc
or host core, not really during unregister. musb_platform_init() is not
called in .udc_start() and .start() hooks, so we shouldn't add
musb_platform_exit() in musb_stop().

Regards,
-Bin.