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remoteproc: Further extend the vdev life cycle

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Tie the vdev (and hence vring) life cycle to the resource parsing and
resource cleanup operations, allowing us to safely register and
unregister virtio devices on the go.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
This commit is contained in:
Bjorn Andersson 2016-10-19 19:40:08 -07:00
parent a863af5d41
commit 2b45cef586
1 changed files with 6 additions and 1 deletions
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7
drivers/remoteproc/remoteproc_core.c
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@ -377,6 +377,9 @@ static int rproc_handle_vdev(struct rproc *rproc, struct fw_rsc_vdev *rsc,
goto unwind_vring_allocations;
}
/* track the rvdevs list reference */
kref_get(&rvdev->refcount);
list_add_tail(&rvdev->node, &rproc->rvdevs);
/* it is now safe to add the virtio device */
@ -839,8 +842,10 @@ static void rproc_resource_cleanup(struct rproc *rproc)
}
/* clean up remote vdev entries */
list_for_each_entry_safe(rvdev, rvtmp, &rproc->rvdevs, node)
list_for_each_entry_safe(rvdev, rvtmp, &rproc->rvdevs, node) {
rproc_remove_virtio_dev(rvdev);
kref_put(&rvdev->refcount, rproc_vdev_release);
}
}
/*