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linux-sg2042
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Merge branch 'virtio' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6 

* 'virtio' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6:
  virtio-pci: disable msi at startup
  virtio: return ENOMEM on out of memory
This commit is contained in:
Linus Torvalds 2010-06-27 07:49:45 -07:00
parent dee70a32fa b03214d559
commit a7b917256d
3 changed files with 5 additions and 1 deletions
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1
drivers/pci/pci.c
View File

@ -2292,6 +2292,7 @@ void pci_msi_off(struct pci_dev *dev)
pci_write_config_word(dev, pos + PCI_MSIX_FLAGS, control);
}
}
EXPORT_SYMBOL_GPL(pci_msi_off);
#ifndef HAVE_ARCH_PCI_SET_DMA_MAX_SEGMENT_SIZE
int pci_set_dma_max_seg_size(struct pci_dev *dev, unsigned int size)

3
drivers/virtio/virtio_pci.c
View File

@ -636,6 +636,9 @@ static int __devinit virtio_pci_probe(struct pci_dev *pci_dev,
INIT_LIST_HEAD(&vp_dev->virtqueues);
spin_lock_init(&vp_dev->lock);
/* Disable MSI/MSIX to bring device to a known good state. */
pci_msi_off(pci_dev);
/* enable the device */
err = pci_enable_device(pci_dev);
if (err)

2
drivers/virtio/virtio_ring.c
View File

@ -119,7 +119,7 @@ static int vring_add_indirect(struct vring_virtqueue *vq,
desc = kmalloc((out + in) * sizeof(struct vring_desc), gfp);
if (!desc)
return vq->vring.num;
return -ENOMEM;
/* Transfer entries from the sg list into the indirect page */
for (i = 0; i < out; i++) {