Commit e341a32e authored by Arvind Yadav's avatar Arvind Yadav Committed by Sasha Levin

vfio-pci: Handle error from pci_iomap

[ Upstream commit e19f32da ]

Here, pci_iomap can fail, handle this case release selected
pci regions and return -ENOMEM.
Signed-off-by: default avatarArvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: default avatarAlex Williamson <alex.williamson@redhat.com>
Signed-off-by: default avatarSasha Levin <alexander.levin@verizon.com>
parent 9de0a4e3
......@@ -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;
......
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