Add Gupta 2011/1/4 <tom.leiming@xxxxxxxxx>: > From: Ming Lei <tom.leiming@xxxxxxxxx> > > This patch adds BLOCKING_INIT_NOTIFIER_HEAD in nop_usb_xceiv_probe, > so that we can avoid oops caused by uninitialized > nop->otg.notifier.rwsem which will be touched in otg_register_notifier > path. > > Reported-by: Gupta, Ajay Kumar <ajay.gupta@xxxxxx> > Tested-by: Gupta, Ajay Kumar <ajay.gupta@xxxxxx> > Cc: Balbi, Felipe <balbi@xxxxxx> > Cc: David Brownell <david-b@xxxxxxxxxxx> > Signed-off-by: Ming Lei <tom.leiming@xxxxxxxxx> > --- > drivers/usb/otg/nop-usb-xceiv.c | 2 ++ > 1 files changed, 2 insertions(+), 0 deletions(-) > > diff --git a/drivers/usb/otg/nop-usb-xceiv.c b/drivers/usb/otg/nop-usb-xceiv.c > index e70014a..8acf165 100644 > --- a/drivers/usb/otg/nop-usb-xceiv.c > +++ b/drivers/usb/otg/nop-usb-xceiv.c > @@ -132,6 +132,8 @@ static int __devinit nop_usb_xceiv_probe(struct platform_device *pdev) > > platform_set_drvdata(pdev, nop); > > + BLOCKING_INIT_NOTIFIER_HEAD(&nop->otg.notifier); > + > return 0; > exit: > kfree(nop); > -- > 1.7.3 > > thanks, -- Lei Ming -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
