diff options
| author | Greg Kurz <groug@kaod.org> | 2019-04-19 17:37:17 +0200 |
|---|---|---|
| committer | Alex Williamson <alex.williamson@redhat.com> | 2019-05-01 13:31:41 -0600 |
| commit | 2c85f2bd519457073444ec28bbb4743a4e4237a7 (patch) | |
| tree | 3e3255c98bdb2a58a48decdac270d3a708a6e228 /drivers/vfio | |
| parent | 41be3e2618174fdf3361e49e64f2bf530f40c6b0 (diff) | |
| download | linux-0-day-2c85f2bd519457073444ec28bbb4743a4e4237a7.tar.gz linux-0-day-2c85f2bd519457073444ec28bbb4743a4e4237a7.tar.xz | |
vfio-pci/nvlink2: Fix potential VMA leak
If vfio_pci_register_dev_region() fails then we should rollback
previous changes, ie. unmap the ATSD registers.
Fixes: 7f92891778df ("vfio_pci: Add NVIDIA GV100GL [Tesla V100 SXM2] subdriver")
Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Diffstat (limited to 'drivers/vfio')
| -rw-r--r-- | drivers/vfio/pci/vfio_pci_nvlink2.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/vfio/pci/vfio_pci_nvlink2.c b/drivers/vfio/pci/vfio_pci_nvlink2.c index 32f695ffe1280..50fe3c4f7feb6 100644 --- a/drivers/vfio/pci/vfio_pci_nvlink2.c +++ b/drivers/vfio/pci/vfio_pci_nvlink2.c @@ -472,6 +472,8 @@ int vfio_pci_ibm_npu2_init(struct vfio_pci_device *vdev) return 0; free_exit: + if (data->base) + memunmap(data->base); kfree(data); return ret; |