diff options
| author |   Arvind Yadav <arvind.yadav.cs@gmail.com> | 2017-01-03 17:26:46 +0530 |
|---|---|---|
| committer |   Alex Williamson <alex.williamson@redhat.com> | 2017-01-04 08:34:39 -0700 |
| commit | e19f32da5ded958238eac1bbe001192acef191a2 (patch) | |
| tree | b80aac9fe6e190097ea965a1bdbd1855c88f8367 /drivers/vfio/pci | |
| parent | vfio-mdev: fix some error codes in the sample code (diff) | |
| download | linux-dev-e19f32da5ded958238eac1bbe001192acef191a2.tar.xz linux-dev-e19f32da5ded958238eac1bbe001192acef191a2.zip | |
vfio-pci: Handle error from pci_iomap
Here, pci_iomap can fail, handle this case release selected
pci regions and return -ENOMEM.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Diffstat (limited to 'drivers/vfio/pci')
| -rw-r--r-- | drivers/vfio/pci/vfio_pci.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/vfio/pci/vfio_pci.c b/drivers/vfio/pci/vfio_pci.c index dcd7c2a99618..324c52e3a1a4 100644 --- a/drivers/vfio/pci/vfio_pci.c +++ b/drivers/vfio/pci/vfio_pci.c @@ -1142,6 +1142,10 @@ static int vfio_pci_mmap(void *device_data, struct vm_area_struct *vma) return ret; vdev->barmap[index] = pci_iomap(pdev, index, 0); + if (!vdev->barmap[index]) { + pci_release_selected_regions(pdev, 1 << index); + return -ENOMEM; + } } vma->vm_private_data = vdev; |