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: 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>
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