From f1a0569be680a1bfb9d624cc4893cba0c6ad4172 Mon Sep 17 00:00:00 2001 From: John Sheu Date: Wed, 6 Feb 2013 20:03:00 -0300 Subject: [PATCH] [media] v4l2-mem2mem: use CAPTURE queue lock In v4l2_m2m_try_schedule(), use the CAPTURE queue lock when accessing the CAPTURE queue, instead of relying on just holding the OUTPUT queue lock. Signed-off-by: John Sheu Acked-by: Pawel Osciak Signed-off-by: Mauro Carvalho Chehab --- drivers/media/v4l2-core/v4l2-mem2mem.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/media/v4l2-core/v4l2-mem2mem.c b/drivers/media/v4l2-core/v4l2-mem2mem.c index da99cf727162..27ddb3d15251 100644 --- a/drivers/media/v4l2-core/v4l2-mem2mem.c +++ b/drivers/media/v4l2-core/v4l2-mem2mem.c @@ -230,12 +230,15 @@ static void v4l2_m2m_try_schedule(struct v4l2_m2m_ctx *m2m_ctx) dprintk("No input buffers available\n"); return; } + spin_lock_irqsave(&m2m_ctx->cap_q_ctx.rdy_spinlock, flags); if (list_empty(&m2m_ctx->cap_q_ctx.rdy_queue)) { + spin_unlock_irqrestore(&m2m_ctx->cap_q_ctx.rdy_spinlock, flags); spin_unlock_irqrestore(&m2m_ctx->out_q_ctx.rdy_spinlock, flags); spin_unlock_irqrestore(&m2m_dev->job_spinlock, flags_job); dprintk("No output buffers available\n"); return; } + spin_unlock_irqrestore(&m2m_ctx->cap_q_ctx.rdy_spinlock, flags); spin_unlock_irqrestore(&m2m_ctx->out_q_ctx.rdy_spinlock, flags); if (m2m_dev->m2m_ops->job_ready -- 2.30.2