linux-kernel - Re: [PATCH 4/5] usb_serial: Kill port mutex

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Date:	Thu, 8 Oct 2009 22:40:36 +0200
From:	Oliver Neukum <oliver@...kum.org>
To:	Alan Stern <stern@...land.harvard.edu>
Cc:	Alan Cox <alan@...rguk.ukuu.org.uk>, Greg KH <greg@...ah.com>,
	Kernel development list <linux-kernel@...r.kernel.org>,
	USB list <linux-usb@...r.kernel.org>
Subject: Re: [PATCH 4/5] usb_serial: Kill port mutex

Am Donnerstag, 8. Oktober 2009 22:06:10 schrieb Alan Stern:

>
> On further thought, unthrottle should autoresume if the device is
> open and autosuspended (but it shouldn't do anything if the device is
> suspended).  After all, the reason for the autosuspend may have been
> the lack of activity caused by the throttling.
>
> In practice this isn't likely to come up.  It would be surprising if
> throttling lasted long enough to cause an autosuspend or if the core
> decided to throttle while the device was autosuspended and hence idle.

So you say that throttle() should do an autopm_put?

	Regards
		Oliver

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