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virtio: allow finalize_features to fail

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This will make it easy for transports to validate features and return
failure.

Signed-off-by: Michael S. Tsirkin <[email protected]>
This commit is contained in:
Michael S. Tsirkin 2014-12-04 20:20:27 +02:00
commit 5c609a5ef0
9 changed files with 38 additions and 16 deletions
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4
drivers/remoteproc/remoteproc_virtio.c
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@ -217,7 +217,7 @@ static u64 rproc_virtio_get_features(struct virtio_device *vdev)
return rsc->dfeatures;
}
static void rproc_virtio_finalize_features(struct virtio_device *vdev)
static int rproc_virtio_finalize_features(struct virtio_device *vdev)
{
struct rproc_vdev *rvdev = vdev_to_rvdev(vdev);
struct fw_rsc_vdev *rsc;
@ -235,6 +235,8 @@ static void rproc_virtio_finalize_features(struct virtio_device *vdev)
* to the remote processor once it is powered on.
*/
rsc->gfeatures = vdev->features;
return 0;
}
static void rproc_virtio_get(struct virtio_device *vdev, unsigned offset,