From ae246b0032146e352c4c06a7bf03cd3d5bcb2ecd Mon Sep 17 00:00:00 2001 From: Ming Qian Date: Tue, 16 Sep 2025 14:10:07 +0800 Subject: [PATCH] media: amphion: Cancel message work before releasing the VPU core To avoid accessing the VPU register after release of the VPU core, cancel the message work and destroy the workqueue that handles the VPU message before release of the VPU core. Fixes: 3cd084519c6f ("media: amphion: add vpu v4l2 m2m support") Cc: stable@vger.kernel.org Signed-off-by: Ming Qian Signed-off-by: Nicolas Dufresne Signed-off-by: Hans Verkuil --- drivers/media/platform/amphion/vpu_v4l2.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/media/platform/amphion/vpu_v4l2.c b/drivers/media/platform/amphion/vpu_v4l2.c index 511881a131b7..47dff9a35bb4 100644 --- a/drivers/media/platform/amphion/vpu_v4l2.c +++ b/drivers/media/platform/amphion/vpu_v4l2.c @@ -703,15 +703,15 @@ static int vpu_v4l2_release(struct vpu_inst *inst) { vpu_trace(inst->vpu->dev, "%p\n", inst); - vpu_release_core(inst->core); - put_device(inst->dev); - if (inst->workqueue) { cancel_work_sync(&inst->msg_work); destroy_workqueue(inst->workqueue); inst->workqueue = NULL; } + vpu_release_core(inst->core); + put_device(inst->dev); + v4l2_ctrl_handler_free(&inst->ctrl_handler); mutex_destroy(&inst->lock);