From: Yinghai Lu Date: Sun, 5 Feb 2012 06:55:01 +0000 (-0800) Subject: PCI: Fix /sys warning when sriov enabled and card is hot removed X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=09cedbef4428580a09b342a7a92a262cfb5cbf25;p=mv-sheeva.git PCI: Fix /sys warning when sriov enabled and card is hot removed sysfs is a bit stricter now and emits warnings in more cases. For SRIOV hotplug, we are calling pci_stop_dev() for each VF first (after we update pci_stop_bus_devices) which remove each VF subdir. So double check the VF dir in /sys before trying to remove the physfn link. Signed-of-by: Yinghai Lu Signed-off-by: Jesse Barnes --- diff --git a/drivers/pci/iov.c b/drivers/pci/iov.c index 0dab5ecf61b..687b3c8e8e3 100644 --- a/drivers/pci/iov.c +++ b/drivers/pci/iov.c @@ -173,7 +173,13 @@ static void virtfn_remove(struct pci_dev *dev, int id, int reset) sprintf(buf, "virtfn%u", id); sysfs_remove_link(&dev->dev.kobj, buf); - sysfs_remove_link(&virtfn->dev.kobj, "physfn"); + /* + * pci_stop_dev() could have been called for this virtfn already, + * so the directory for the virtfn may have been removed before. + * Double check to avoid spurious sysfs warnings. + */ + if (virtfn->dev.kobj.sd) + sysfs_remove_link(&virtfn->dev.kobj, "physfn"); mutex_lock(&iov->dev->sriov->lock); pci_remove_bus_device(virtfn);