Eric Lee / smarc-ti-linux-kernel

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Commit 812a7df6556faae25deb42dbcc9e47829855556f

Authored by Arvind Yadav
Committed by Greg Kroah-Hartman
1 parent a417ea5b9d
Exists in smarct4x-processor-sdk-04.01.00.06 and in 1 other branch smarct3x-processor-sdk-04.01.00.06

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>

Showing 1 changed file with 4 additions and 0 deletions Side-by-side Diff

drivers/vfio/pci/vfio_pci.c
Diff comments   View file @ 812a7df
... ... @@ -1173,6 +1173,10 @@
1173 1173 return ret;
1174 1174  
1175 1175 vdev->barmap[index] = pci_iomap(pdev, index, 0);
  1176 + if (!vdev->barmap[index]) {
  1177 + pci_release_selected_regions(pdev, 1 << index);
  1178 + return -ENOMEM;
  1179 + }
1176 1180 }
1177 1181  
1178 1182 vma->vm_private_data = vdev;