From ad34f5412d2a04a894b2cd2912538ae2e5d64e76 Mon Sep 17 00:00:00 2001 From: Tiffany Lin Date: Sun, 14 Aug 2016 23:47:20 -0300 Subject: [PATCH] [media] vcodec:mediatek: Fix fops_vcodec_release flow for V4L2 Encoder This patch fix that mtk_vcodec_venc_release should be called after v4l2_m2m_ctx_release Signed-off-by: Tiffany Lin Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c | 7 ++++++- drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c | 6 +++++- 2 files changed, 11 insertions(+), 2 deletions(-) diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c index 3ed3f2d31df5..3b0691f2deb4 100644 --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c @@ -1288,5 +1288,10 @@ int mtk_venc_lock(struct mtk_vcodec_ctx *ctx) void mtk_vcodec_enc_release(struct mtk_vcodec_ctx *ctx) { - venc_if_deinit(ctx); + int ret = venc_if_deinit(ctx); + + if (ret) + mtk_v4l2_err("venc_if_deinit failed=%d", ret); + + ctx->state = MTK_STATE_FREE; } diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c index c7806ecda2dd..5cd2151431bf 100644 --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c @@ -218,11 +218,15 @@ static int fops_vcodec_release(struct file *file) mtk_v4l2_debug(1, "[%d] encoder", ctx->id); mutex_lock(&dev->dev_mutex); + /* + * Call v4l2_m2m_ctx_release to make sure the worker thread is not + * running after venc_if_deinit. + */ + v4l2_m2m_ctx_release(ctx->m2m_ctx); mtk_vcodec_enc_release(ctx); v4l2_fh_del(&ctx->fh); v4l2_fh_exit(&ctx->fh); v4l2_ctrl_handler_free(&ctx->ctrl_hdl); - v4l2_m2m_ctx_release(ctx->m2m_ctx); list_del_init(&ctx->list); dev->num_instances--;