From b786242eb0cfb8d1ee9ba346591e8d1ed75b6579 Mon Sep 17 00:00:00 2001 From: Marian Mihailescu Date: Fri, 24 Jun 2022 17:38:45 +0000 Subject: [PATCH] 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 678323b7b258..4c2c1f10d4e5 100644 --- a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc.c +++ b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc.c @@ -958,6 +958,11 @@ 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) {