diff options
Diffstat (limited to 'drivers/virtio/virtio_pci_modern_dev.c')
| -rw-r--r-- | drivers/virtio/virtio_pci_modern_dev.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/virtio/virtio_pci_modern_dev.c b/drivers/virtio/virtio_pci_modern_dev.c index 591738ad3d56..a0fa14f28a7f 100644 --- a/drivers/virtio/virtio_pci_modern_dev.c +++ b/drivers/virtio/virtio_pci_modern_dev.c @@ -347,6 +347,7 @@ err_map_notify: err_map_isr: pci_iounmap(pci_dev, mdev->common); err_map_common: + pci_release_selected_regions(pci_dev, mdev->modern_bars); return err; } EXPORT_SYMBOL_GPL(vp_modern_probe); @@ -466,6 +467,11 @@ void vp_modern_set_status(struct virtio_pci_modern_device *mdev, { struct virtio_pci_common_cfg __iomem *cfg = mdev->common; + /* + * Per memory-barriers.txt, wmb() is not needed to guarantee + * that the the cache coherent memory writes have completed + * before writing to the MMIO region. + */ vp_iowrite8(status, &cfg->device_status); } EXPORT_SYMBOL_GPL(vp_modern_set_status); |