rpmsg: fix dma_free_coherent dev parameter

dma_alloc/free_coherent APIs requires the platform specific remoteproc
device as the device parameter. We are passing vdev->dev.parent to the
dma_free_coherent function which is the generic rproc device and it is
wrong, it has to be vdev->dev.parent->parent instead, same as when we
call dma_alloc_coherent function.

Signed-off-by: Fernando Guzman Lugo <fernando.lugo@ti.com>
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>

diff --git a/drivers/rpmsg/virtio_rpmsg_bus.c b/drivers/rpmsg/virtio_rpmsg_bus.c
index 590cfafc7c172ce8a2d3230de12057a85dfaa7d0..1859f71372e24912203dca245f3d60c71c80a35d 100644 (file)
--- a/drivers/rpmsg/virtio_rpmsg_bus.c
+++ b/drivers/rpmsg/virtio_rpmsg_bus.c
@@ -1008,8 +1008,8 @@ static int rpmsg_probe(struct virtio_device *vdev)
        return 0;
 
 free_coherent:
-       dma_free_coherent(vdev->dev.parent, RPMSG_TOTAL_BUF_SPACE, bufs_va,
-                                       vrp->bufs_dma);
+       dma_free_coherent(vdev->dev.parent->parent, RPMSG_TOTAL_BUF_SPACE,
+                                       bufs_va, vrp->bufs_dma);
 vqs_del:
        vdev->config->del_vqs(vrp->vdev);
 free_vrp:
@@ -1043,7 +1043,7 @@ static void __devexit rpmsg_remove(struct virtio_device *vdev)
 
        vdev->config->del_vqs(vrp->vdev);
 
-       dma_free_coherent(vdev->dev.parent, RPMSG_TOTAL_BUF_SPACE,
+       dma_free_coherent(vdev->dev.parent->parent, RPMSG_TOTAL_BUF_SPACE,
                                        vrp->rbufs, vrp->bufs_dma);
 
        kfree(vrp);