From: Dexuan Cui <decui@xxxxxxxxxxxxx> Sent: Monday, March 4, 2019 1:35 PM > > diff --git a/drivers/pci/controller/pci-hyperv.c b/drivers/pci/controller/pci-hyperv.c > index b489412e3502..82acd6155adf 100644 > --- a/drivers/pci/controller/pci-hyperv.c > +++ b/drivers/pci/controller/pci-hyperv.c > @@ -1776,6 +1776,10 @@ static void pci_devices_present_work(struct work_struct *work) > hpdev = list_first_entry(&removed, struct hv_pci_dev, > list_entry); > list_del(&hpdev->list_entry); > + > + if (hpdev->pci_slot) > + pci_destroy_slot(hpdev->pci_slot); The code is inconsistent in whether hpdev->pci_slot is set to NULL after calling pci_destory_slot(). Patch 2 in this series does set it to NULL, but this code does not. And the code in hv_eject_device_work() does not set it to NULL. It looks like all the places that test the value of hpdev->pci_slot or call pci_destroy_slot() are serialized, so it looks like it really doesn't matter. But when the code is inconsistent about setting to NULL, it always makes me wonder if there is a reason. Michael > + > put_pcichild(hpdev); > } > > -- > 2.19.1
