From e62d3c12e01f644b2e9874950e9e432d4fe56963 Mon Sep 17 00:00:00 2001 From: OtherCrashOverride Date: Fri, 19 May 2017 12:59:51 +0000 Subject: [PATCH 09/75] ODROID-XU4: 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. Change-Id: Ie5c664ecddaebedf282eae1d56e82821b5883ffd Signed-off-by: memeka --- drivers/media/platform/s5p-mfc/s5p_mfc.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc.c b/drivers/media/platform/s5p-mfc/s5p_mfc.c index 37f2113a00ec..8c39528be39e 100644 --- a/drivers/media/platform/s5p-mfc/s5p_mfc.c +++ b/drivers/media/platform/s5p-mfc/s5p_mfc.c @@ -941,6 +941,11 @@ 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) { -- 2.25.1