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-rw-r--r--drivers/pci/iov.c9
1 files changed, 4 insertions, 5 deletions
diff --git a/drivers/pci/iov.c b/drivers/pci/iov.c
index 00784a60ba80..4a659c34935e 100644
--- a/drivers/pci/iov.c
+++ b/drivers/pci/iov.c
@@ -495,7 +495,9 @@ static ssize_t sriov_numvfs_store(struct device *dev,
if (num_vfs == 0) {
/* disable VFs */
+ pci_lock_rescan_remove();
ret = pdev->driver->sriov_configure(pdev, 0);
+ pci_unlock_rescan_remove();
goto exit;
}
@@ -507,7 +509,9 @@ static ssize_t sriov_numvfs_store(struct device *dev,
goto exit;
}
+ pci_lock_rescan_remove();
ret = pdev->driver->sriov_configure(pdev, num_vfs);
+ pci_unlock_rescan_remove();
if (ret < 0)
goto exit;
@@ -629,18 +633,15 @@ static int sriov_add_vfs(struct pci_dev *dev, u16 num_vfs)
if (dev->no_vf_scan)
return 0;
- pci_lock_rescan_remove();
for (i = 0; i < num_vfs; i++) {
rc = pci_iov_add_virtfn(dev, i);
if (rc)
goto failed;
}
- pci_unlock_rescan_remove();
return 0;
failed:
while (i--)
pci_iov_remove_virtfn(dev, i);
- pci_unlock_rescan_remove();
return rc;
}
@@ -765,10 +766,8 @@ static void sriov_del_vfs(struct pci_dev *dev)
struct pci_sriov *iov = dev->sriov;
int i;
- pci_lock_rescan_remove();
for (i = 0; i < iov->num_VFs; i++)
pci_iov_remove_virtfn(dev, i);
- pci_unlock_rescan_remove();
}
static void sriov_disable(struct pci_dev *dev)