From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Bjorn Andersson Subject: [PATCH 07/11] remoteproc: Further extend the vdev life cycle Date: Wed, 19 Oct 2016 19:40:08 -0700 Message-Id: <1476931212-1806-8-git-send-email-bjorn.andersson@linaro.org> In-Reply-To: <1476931212-1806-1-git-send-email-bjorn.andersson@linaro.org> References: <1476931212-1806-1-git-send-email-bjorn.andersson@linaro.org> To: Ohad Ben-Cohen , Bjorn Andersson Cc: linux-remoteproc@vger.kernel.org, linux-kernel@vger.kernel.org List-ID: 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 --- drivers/remoteproc/remoteproc_core.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c index e4509c8dd8e8..1d2f4b2dd05d 100644 --- a/drivers/remoteproc/remoteproc_core.c +++ b/drivers/remoteproc/remoteproc_core.c @@ -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); + } } /* -- 2.5.0