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IB/usnic: Fix locking when unregistering 

Move the call to usnic_ib_device_remove after usnic_ib_ibdev_list_lock has
been released.

Signed-off-by: Parvi Kaustubhi <pkaustub@cisco.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Parvi Kaustubhi 2019-02-08 13:53:43 -08:00 committed by Jason Gunthorpe
parent c8a7eb554a
commit 0c23660649
1 changed files with 4 additions and 2 deletions
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6
drivers/infiniband/hw/usnic/usnic_ib_main.c
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@ -470,15 +470,17 @@ static void usnic_ib_undiscover_pf(struct kref *kref)
&usnic_ib_ibdev_list, ib_dev_link) { &usnic_ib_ibdev_list, ib_dev_link) {
if (us_ibdev->pdev == dev) { if (us_ibdev->pdev == dev) {
list_del(&us_ibdev->ib_dev_link); list_del(&us_ibdev->ib_dev_link);
usnic_ib_device_remove(us_ibdev);
found = true; found = true;
break; break;
} }
} }
WARN(!found, "Failed to remove PF %s\n", pci_name(dev));
mutex_unlock(&usnic_ib_ibdev_list_lock); mutex_unlock(&usnic_ib_ibdev_list_lock);
if (found)
usnic_ib_device_remove(us_ibdev);
else
WARN(1, "Failed to remove PF %s\n", pci_name(dev));
} }
static struct usnic_ib_dev *usnic_ib_discover_pf(struct usnic_vnic *vnic) static struct usnic_ib_dev *usnic_ib_discover_pf(struct usnic_vnic *vnic)