From e3a80073d99c376176d81013335cd355af576be2 Mon Sep 17 00:00:00 2001 From: Jackson Lee Date: Fri, 26 Jun 2026 10:22:31 +0900 Subject: [PATCH] media: chips-media: wave5: Fix pipeline stall when queuing fails The Wave5 decoder calls v4l2_m2m_job_finish() immediately in device_run() after submitting frames to firmware. When the firmware completes those frames and the queue drains to zero, finish_decode() has no active M2M job to finish, so v4l2_m2m_schedule_next_job() is never called and the decoder stalls. Call v4l2_m2m_try_schedule() in finish_decode() when the firmware queue empties to ensure the framework always schedules the next device_run(). Fixes: a176ac5e701f ("media: chips-media: wave5: Improve performance of decoder") Cc: stable@vger.kernel.org Signed-off-by: Jackson Lee Signed-off-by: Nas Chung Reviewed-by: Nicolas Dufresne Signed-off-by: Nicolas Dufresne Signed-off-by: Hans Verkuil --- drivers/media/platform/chips-media/wave5/wave5-vpu-dec.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/media/platform/chips-media/wave5/wave5-vpu-dec.c b/drivers/media/platform/chips-media/wave5/wave5-vpu-dec.c index f33c00cb801b..1817b83c5884 100644 --- a/drivers/media/platform/chips-media/wave5/wave5-vpu-dec.c +++ b/drivers/media/platform/chips-media/wave5/wave5-vpu-dec.c @@ -475,7 +475,10 @@ static void wave5_vpu_dec_finish_decode(struct vpu_instance *inst) v4l2_m2m_job_finish(inst->v4l2_m2m_dev, m2m_ctx); } - inst->queuing_fail = false; + if (inst->queuing_fail) { + inst->queuing_fail = false; + v4l2_m2m_try_schedule(m2m_ctx); + } } static int wave5_vpu_dec_querycap(struct file *file, void *fh, struct v4l2_capability *cap)