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Date: Thu, 15 Dec 2011 22:30:55 -0500 (EST) From: Alan Stern <stern@...land.harvard.edu> To: Felipe Contreras <felipe.contreras@...il.com> 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, 16 Dec 2011, Felipe Contreras wrote: > >> --- a/drivers/usb/musb/omap2430.c > >> +++ b/drivers/usb/musb/omap2430.c > >> @@ -385,6 +385,7 @@ static void omap2430_musb_disable(struct musb *musb) > >> > >> static int omap2430_musb_exit(struct musb *musb) > >> { > >> + pm_runtime_put(musb->controller); > >> del_timer_sync(&musb_idle_timer); > >> > >> omap2430_low_level_exit(musb); > > > > 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. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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