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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-06-27 16:49:45 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-06-27 16:49:45 +0200 |
| commit | a7b917256d8afacadc614414c4b0d411f76f3747 (patch) | |
| tree | 295558a19f52e4c507da57204cc6a86ba22708c6 | |
| parent | Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jba... (diff) | |
| parent | virtio-pci: disable msi at startup (diff) | |
| download | linux-a7b917256d8afacadc614414c4b0d411f76f3747.tar.xz linux-a7b917256d8afacadc614414c4b0d411f76f3747.zip | |
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
| -rw-r--r-- | drivers/pci/pci.c | 1 | ||||
| -rw-r--r-- | drivers/virtio/virtio_pci.c | 3 | ||||
| -rw-r--r-- | drivers/virtio/virtio_ring.c | 2 |
3 files changed, 5 insertions, 1 deletions
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 60f30e7f1c8c..740fb4ea9669 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -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) diff --git a/drivers/virtio/virtio_pci.c b/drivers/virtio/virtio_pci.c index 95896f387927..ef8d9d558fc7 100644 --- a/drivers/virtio/virtio_pci.c +++ b/drivers/virtio/virtio_pci.c @@ -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) diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c index 1ca88908723b..afe7e21dd0ae 100644 --- a/drivers/virtio/virtio_ring.c +++ b/drivers/virtio/virtio_ring.c @@ -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++) { |