diff options
| author | Arvind Yadav <arvind.yadav.cs@gmail.com> | 2017-01-03 17:26:46 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-08-06 19:19:46 -0700 |
| commit | dc48ebe330636439198ac4645fb2ec001e38b4af (patch) | |
| tree | e8357d26b4098e91514017d202ac2a9c62ca398f | |
| parent | 93794239c6b93622e722434bfb78b7780e6a790e (diff) | |
vfio-pci: Handle error from pci_iomap
[ Upstream commit e19f32da5ded958238eac1bbe001192acef191a2 ]
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>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -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 830e2fd47642..b31b84f56e8f 100644 --- a/drivers/vfio/pci/vfio_pci.c +++ b/drivers/vfio/pci/vfio_pci.c @@ -902,6 +902,10 @@ 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; |