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Commit aab8d802 authored by Bjorn Andersson's avatar Bjorn Andersson
Browse files

remoteproc: Assign kref to rproc_vdev 



No functional change

Signed-off-by: default avatarBjorn Andersson <bjorn.andersson@linaro.org>
parent be33c28f

drivers/remoteproc/remoteproc_core.c

+10 −0
Original line number Diff line number Diff line
@@ -356,6 +356,8 @@ static int rproc_handle_vdev(struct rproc *rproc, struct fw_rsc_vdev *rsc, 
	if (!rvdev)

		return -ENOMEM;



	kref_init(&rvdev->refcount);



	rvdev->rproc = rproc;



	/* parse the vrings */
@@ -384,6 +386,14 @@ static int rproc_handle_vdev(struct rproc *rproc, struct fw_rsc_vdev *rsc, 
	return ret;

}



void rproc_vdev_release(struct kref *ref)

{

	struct rproc_vdev *rvdev = container_of(ref, struct rproc_vdev, refcount);



	list_del(&rvdev->node);

	kfree(rvdev);

}



/**

 * rproc_handle_trace() - handle a shared trace buffer resource

 * @rproc: the remote processor

drivers/remoteproc/remoteproc_internal.h

+1 −0
Original line number Diff line number Diff line
@@ -49,6 +49,7 @@ struct rproc_fw_ops { 
void rproc_release(struct kref *kref);

irqreturn_t rproc_vq_interrupt(struct rproc *rproc, int vq_id);

int rproc_boot_nowait(struct rproc *rproc);

void rproc_vdev_release(struct kref *ref);



/* from remoteproc_virtio.c */

int rproc_add_virtio_dev(struct rproc_vdev *rvdev, int id);

drivers/remoteproc/remoteproc_virtio.c

+6 −4
Original line number Diff line number Diff line
@@ -282,14 +282,13 @@ static const struct virtio_config_ops rproc_virtio_config_ops = { 
 * Never call this function directly; it will be called by the driver

 * core when needed.

 */

static void rproc_vdev_release(struct device *dev)

static void rproc_virtio_dev_release(struct device *dev)

{

	struct virtio_device *vdev = dev_to_virtio(dev);

	struct rproc_vdev *rvdev = vdev_to_rvdev(vdev);

	struct rproc *rproc = vdev_to_rproc(vdev);



	list_del(&rvdev->node);

	kfree(rvdev);

	kref_put(&rvdev->refcount, rproc_vdev_release);



	put_device(&rproc->dev);

}
@@ -313,7 +312,7 @@ int rproc_add_virtio_dev(struct rproc_vdev *rvdev, int id) 
	vdev->id.device	= id,

	vdev->config = &rproc_virtio_config_ops,

	vdev->dev.parent = dev;

	vdev->dev.release = rproc_vdev_release;

	vdev->dev.release = rproc_virtio_dev_release;



	/*

	 * We're indirectly making a non-temporary copy of the rproc pointer
@@ -325,6 +324,9 @@ int rproc_add_virtio_dev(struct rproc_vdev *rvdev, int id) 
	 */

	get_device(&rproc->dev);



	/* Reference the vdev and vring allocations */

	kref_get(&rvdev->refcount);



	ret = register_virtio_device(vdev);

	if (ret) {

		put_device(&rproc->dev);

include/linux/remoteproc.h

+3 −0
Original line number Diff line number Diff line
@@ -487,6 +487,7 @@ struct rproc_vring { 


/**

 * struct rproc_vdev - remoteproc state for a supported virtio device

 * @refcount: reference counter for the vdev and vring allocations

 * @node: list node

 * @rproc: the rproc handle

 * @vdev: the virio device
@@ -494,6 +495,8 @@ struct rproc_vring { 
 * @rsc_offset: offset of the vdev's resource entry

 */

struct rproc_vdev {

	struct kref refcount;



	struct list_head node;

	struct rproc *rproc;

	struct virtio_device vdev;