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| author | Alexander Duyck <aduyck@mirantis.com> | 2015-10-29 16:21:20 -0500 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2015-10-30 15:15:02 -0500 |
| commit | c23b613507b8fa10e1839fb5a42e1b0318bf1d27 (patch) | |
| tree | ff0c75027f5d1d69dc524730fb41c23af52c0f57 /drivers/pci/iov.c | |
| parent | b390864482924a21f8d7e25636d0140de93fba7e (diff) | |
| download | linux-c23b613507b8fa10e1839fb5a42e1b0318bf1d27.tar.gz linux-c23b613507b8fa10e1839fb5a42e1b0318bf1d27.tar.bz2 linux-c23b613507b8fa10e1839fb5a42e1b0318bf1d27.zip | |
PCI: Fix sriov_enable() error path for pcibios_enable_sriov() failures
Disable VFs if pcibios_enable_sriov() fails, just like we do for other
errors in sriov_enable(). Call pcibios_sriov_disable() if virtfn_add()
fails.
[bhelgaas: changelog, split to separate patch for reviewability]
Fixes: 995df527f399 ("PCI: Add pcibios_sriov_enable() and pcibios_sriov_disable()")
Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Wei Yang <weiyang@linux.vnet.ibm.com>
Diffstat (limited to 'drivers/pci/iov.c')
| -rw-r--r-- | drivers/pci/iov.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/drivers/pci/iov.c b/drivers/pci/iov.c index 24428d5f60cd..bd1c4faedea2 100644 --- a/drivers/pci/iov.c +++ b/drivers/pci/iov.c @@ -246,7 +246,6 @@ static int sriov_enable(struct pci_dev *dev, int nr_virtfn) struct pci_sriov *iov = dev->sriov; int bars = 0; int bus; - int retval; if (!nr_virtfn) return 0; @@ -315,10 +314,10 @@ static int sriov_enable(struct pci_dev *dev, int nr_virtfn) if (nr_virtfn < initial) initial = nr_virtfn; - if ((retval = pcibios_sriov_enable(dev, initial))) { - dev_err(&dev->dev, "failure %d from pcibios_sriov_enable()\n", - retval); - return retval; + rc = pcibios_sriov_enable(dev, initial); + if (rc) { + dev_err(&dev->dev, "failure %d from pcibios_sriov_enable()\n", rc); + goto err_pcibios; } for (i = 0; i < initial; i++) { @@ -336,6 +335,8 @@ failed: while (i--) virtfn_remove(dev, i, 0); + pcibios_sriov_disable(dev); +err_pcibios: iov->ctrl &= ~(PCI_SRIOV_CTRL_VFE | PCI_SRIOV_CTRL_MSE); pci_cfg_access_lock(dev); pci_write_config_word(dev, iov->pos + PCI_SRIOV_CTRL, iov->ctrl); |