On Tue, 24 Jan 2012 10:56:12 +0200 Felipe Balbi <ba...@ti.com> wrote:
> On Fri, Dec 30, 2011 at 12:36:28PM +1100, NeilBrown wrote:
> >
> >
> > This callback is on an 'atomic notificaitons' queue but is written
> > as a blocking notifier.
> >
> > Convert to use a work-queue to run from non-atomic context.
> >
> > Signed-off-by: NeilBrown <ne...@suse.de>
>
> doesn't apply.
>
It did 1 month ago when I sent it :-)
It seems that commit 712d8efafbbcbe617f9ad706f6ca1ffea4bbf2e8
fixed the same problem already.
The following patch adds a few little bits
Thanks,
NeilBrown
musb/omap2430 minor cleanups.
1/ remove incorrect comment (it is a non-blocking notifier)
2/ Use correct symbolic return value for notifier
3/ Make sure otg_notifier_work is cancelled before module exit.
Signed-off-by: NeilBrown <ne...@suse.de>
diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c
index c27bbbf..df719ea 100644
--- a/drivers/usb/musb/omap2430.c
+++ b/drivers/usb/musb/omap2430.c
@@ -222,7 +222,6 @@ static inline void omap2430_low_level_init(struct musb
*musb)
musb_writel(musb->mregs, OTG_FORCESTDBY, l);
}
-/* blocking notifier support */
static int musb_otg_notifications(struct notifier_block *nb,
unsigned long event, void *unused)
{
@@ -231,7 +230,7 @@ static int musb_otg_notifications(struct notifier_block *nb,
musb->xceiv_event = event;
schedule_work(&musb->otg_notifier_work);
- return 0;
+ return NOTIFY_OK;
}
static void musb_otg_notifier_work(struct work_struct *data_notifier_work)
@@ -386,6 +385,7 @@ static void omap2430_musb_disable(struct musb *musb)
static int omap2430_musb_exit(struct musb *musb)
{
del_timer_sync(&musb_idle_timer);
+ cancel_work_sync(&musb->otg_notifier_work);
omap2430_low_level_exit(musb);
otg_put_transceiver(musb->xceiv);
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