5 files changed, 1 insertions, 29 deletions

diff --git a/drivers/staging/media/sunxi/cedrus/cedrus.c b/drivers/staging/media/sunxi/cedrus/cedrus.c
index b538eb0321d8..c28c70ac7c81 100644
--- a/drivers/staging/media/sunxi/cedrus/cedrus.c
+++ b/drivers/staging/media/sunxi/cedrus/cedrus.c
@@ -279,7 +279,6 @@ static int cedrus_probe(struct platform_device *pdev)
 	dev->dec_ops[CEDRUS_CODEC_MPEG2] = &cedrus_dec_ops_mpeg2;
 
 	mutex_init(&dev->dev_mutex);
-	spin_lock_init(&dev->irq_lock);
 
 	ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev);
 	if (ret) {
diff --git a/drivers/staging/media/sunxi/cedrus/cedrus.h b/drivers/staging/media/sunxi/cedrus/cedrus.h
index 3f61248c57ac..3acfdcf83691 100644
--- a/drivers/staging/media/sunxi/cedrus/cedrus.h
+++ b/drivers/staging/media/sunxi/cedrus/cedrus.h
@@ -105,8 +105,6 @@ struct cedrus_dev {
 
 	/* Device file mutex */
 	struct mutex		dev_mutex;
-	/* Interrupt spinlock */
-	spinlock_t		irq_lock;
 
 	void __iomem		*base;
 
diff --git a/drivers/staging/media/sunxi/cedrus/cedrus_dec.c b/drivers/staging/media/sunxi/cedrus/cedrus_dec.c
index e40180a33951..6c5e310a7cf7 100644
--- a/drivers/staging/media/sunxi/cedrus/cedrus_dec.c
+++ b/drivers/staging/media/sunxi/cedrus/cedrus_dec.c
@@ -28,7 +28,6 @@ void cedrus_device_run(void *priv)
 	struct cedrus_dev *dev = ctx->dev;
 	struct cedrus_run run = { 0 };
 	struct media_request *src_req;
-	unsigned long flags;
 
 	run.src = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);
 	run.dst = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
@@ -39,8 +38,6 @@ void cedrus_device_run(void *priv)
 	if (src_req)
 		v4l2_ctrl_request_setup(src_req, &ctx->hdl);
 
-	spin_lock_irqsave(&ctx->dev->irq_lock, flags);
-
 	switch (ctx->src_fmt.pixelformat) {
 	case V4L2_PIX_FMT_MPEG2_SLICE:
 		run.mpeg2.slice_params = cedrus_find_control_data(ctx,
@@ -55,16 +52,10 @@ void cedrus_device_run(void *priv)
 
 	dev->dec_ops[ctx->current_codec]->setup(ctx, &run);
 
-	spin_unlock_irqrestore(&ctx->dev->irq_lock, flags);
-
 	/* Complete request(s) controls if needed. */
 
 	if (src_req)
 		v4l2_ctrl_request_complete(src_req, &ctx->hdl);
 
-	spin_lock_irqsave(&ctx->dev->irq_lock, flags);
-
 	dev->dec_ops[ctx->current_codec]->trigger(ctx);
-
-	spin_unlock_irqrestore(&ctx->dev->irq_lock, flags);
 }
diff --git a/drivers/staging/media/sunxi/cedrus/cedrus_hw.c b/drivers/staging/media/sunxi/cedrus/cedrus_hw.c
index 493e65b17b30..243592a5425e 100644
--- a/drivers/staging/media/sunxi/cedrus/cedrus_hw.c
+++ b/drivers/staging/media/sunxi/cedrus/cedrus_hw.c
@@ -105,24 +105,17 @@ static irqreturn_t cedrus_irq(int irq, void *data)
 	struct vb2_v4l2_buffer *src_buf, *dst_buf;
 	enum vb2_buffer_state state;
 	enum cedrus_irq_status status;
-	unsigned long flags;
-
-	spin_lock_irqsave(&dev->irq_lock, flags);
 
 	ctx = v4l2_m2m_get_curr_priv(dev->m2m_dev);
 	if (!ctx) {
 		v4l2_err(&dev->v4l2_dev,
 			 "Instance released before the end of transaction\n");
-		spin_unlock_irqrestore(&dev->irq_lock, flags);
-
 		return IRQ_NONE;
 	}
 
 	status = dev->dec_ops[ctx->current_codec]->irq_status(ctx);
-	if (status == CEDRUS_IRQ_NONE) {
-		spin_unlock_irqrestore(&dev->irq_lock, flags);
+	if (status == CEDRUS_IRQ_NONE)
 		return IRQ_NONE;
-	}
 
 	dev->dec_ops[ctx->current_codec]->irq_disable(ctx);
 	dev->dec_ops[ctx->current_codec]->irq_clear(ctx);
@@ -133,8 +126,6 @@ static irqreturn_t cedrus_irq(int irq, void *data)
 	if (!src_buf || !dst_buf) {
 		v4l2_err(&dev->v4l2_dev,
 			 "Missing source and/or destination buffers\n");
-		spin_unlock_irqrestore(&dev->irq_lock, flags);
-
 		return IRQ_HANDLED;
 	}
 
@@ -146,8 +137,6 @@ static irqreturn_t cedrus_irq(int irq, void *data)
 	v4l2_m2m_buf_done(src_buf, state);
 	v4l2_m2m_buf_done(dst_buf, state);
 
-	spin_unlock_irqrestore(&dev->irq_lock, flags);
-
 	v4l2_m2m_job_finish(ctx->dev->m2m_dev, ctx->fh.m2m_ctx);
 
 	return IRQ_HANDLED;
diff --git a/drivers/staging/media/sunxi/cedrus/cedrus_video.c b/drivers/staging/media/sunxi/cedrus/cedrus_video.c
index 5c5fce678b93..8721b4a7d496 100644
--- a/drivers/staging/media/sunxi/cedrus/cedrus_video.c
+++ b/drivers/staging/media/sunxi/cedrus/cedrus_video.c
@@ -380,18 +380,13 @@ static void cedrus_queue_cleanup(struct vb2_queue *vq, u32 state)
 {
 	struct cedrus_ctx *ctx = vb2_get_drv_priv(vq);
 	struct vb2_v4l2_buffer *vbuf;
-	unsigned long flags;
 
 	for (;;) {
-		spin_lock_irqsave(&ctx->dev->irq_lock, flags);
-
 		if (V4L2_TYPE_IS_OUTPUT(vq->type))
 			vbuf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
 		else
 			vbuf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
 
-		spin_unlock_irqrestore(&ctx->dev->irq_lock, flags);
-
 		if (!vbuf)
 			return;