From 30b928690575651687ae46f4bdbc946efd9cc0bd Mon Sep 17 00:00:00 2001 From: Marian Mihailescu Date: Fri, 24 Jun 2022 17:38:45 +0000 Subject: [PATCH 13/21] MEMEKA: media: s5p-mfc: stop streaming before releasing queues If streaming is active when the MFC device is closed, it will generate an IOMMU page-fault. Signed-off-by: Marian Mihailescu --- drivers/media/platform/samsung/s5p-mfc/s5p_mfc.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc.c b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc.c index e33863d9ae2d..f9b4b506c04c 100644 --- a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc.c +++ b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc.c @@ -943,6 +943,11 @@ static int s5p_mfc_release(struct file *file) mfc_debug_enter(); if (dev) mutex_lock(&dev->mfc_mutex); + + /* stop streaming */ + vb2_streamoff(&ctx->vq_src, V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE); + vb2_streamoff(&ctx->vq_dst, V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE); + vb2_queue_release(&ctx->vq_src); vb2_queue_release(&ctx->vq_dst); if (dev) { -- 2.17.1