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 18:59:48 -0700 |
| commit | 812a7df6556faae25deb42dbcc9e47829855556f (patch) | |
| tree | f526feab115a50738d6e45b41e5999b3b4746f41 | |
| parent | a417ea5b9d22dc5733f6fac5cee72735cb7f8d99 (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 031bc08d000d..43559bed7822 100644 --- a/drivers/vfio/pci/vfio_pci.c +++ b/drivers/vfio/pci/vfio_pci.c @@ -1173,6 +1173,10 @@ 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; |