linux-kernel - Re: [PATCH 1/3] usb: musb: fix pm

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Message-ID: <CAMP44s08LPo5Fp+jjictn48bMLo9R0OyGryYw32Bup6TqmCxEQ@mail.gmail.com>
Date:	Mon, 19 Dec 2011 22:21:53 +0200
From:	Felipe Contreras <felipe.contreras@...il.com>
To:	Alan Stern <stern@...land.harvard.edu>
Cc:	linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-omap@...r.kernel.org, Felipe Balbi <balbi@...com>,
	Greg Kroah-Hartman <gregkh@...e.de>,
	Jiri Kosina <trivial@...nel.org>
Subject: Re: [PATCH 1/3] usb: musb: fix pm_runtime mismatches

On Fri, Dec 16, 2011 at 5:30 AM, Alan Stern <stern@...land.harvard.edu> wrote:
> On Fri, 16 Dec 2011, Felipe Contreras wrote:
>> > Should these calls be pm_runtime_put_sync() instead of
>> > pm_runtime_put()?
>>
>> I don't see why... The thing failed, it's not going to be used any
>> more so better let PM deactivate the device.
>
> It's not a big deal.  The difference is that pm_runtime_put_sync()
> avoids an extra context switch when suspending the device.  A minor
> optimization, that's all.

Ok, I used what most of the code was using, but I've trusted you and
updated the patches. It would probably make sense to do the same in
other places.

-- 
Felipe Contreras
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