2015-12-02 20:16 GMT+08:00 Matias Bjørling <m@xxxxxxxxxxx>: > The core can initialize I/Os before a media manager is registered with > the lightnvm subsystem. Make sure that we don't call the media manager > prematurely. > > Signed-off-by: Matias Bjørling <m@xxxxxxxxxxx> > --- > drivers/nvme/host/lightnvm.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/nvme/host/lightnvm.c b/drivers/nvme/host/lightnvm.c > index 06c3364..762c9a7 100644 > --- a/drivers/nvme/host/lightnvm.c > +++ b/drivers/nvme/host/lightnvm.c > @@ -455,7 +455,7 @@ static void nvme_nvm_end_io(struct request *rq, int error) > struct nvm_rq *rqd = rq->end_io_data; > struct nvm_dev *dev = rqd->dev; > > - if (dev->mt->end_io(rqd, error)) > + if (dev->mt && dev->mt->end_io(rqd, error)) Is there any chance core can initialize IOs on device without register with a media manger ? In my understanding core cannot create target on device without a media manger, if core doesn't have a target how can core initialize IOs on these devices? If I'm wrong about this, please correct me. -- To unsubscribe from this list: send the line "unsubscribe linux-block" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
