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-rw-r--r--drivers/media/common/saa7146_fops.c2
-rw-r--r--drivers/media/video/bt8xx/bttv-risc.c2
-rw-r--r--drivers/media/video/cx23885/cx23885-core.c2
-rw-r--r--drivers/media/video/cx88/cx88-core.c2
-rw-r--r--drivers/media/video/fsl-viu.c2
-rw-r--r--drivers/media/video/mem2mem_testdev.c2
-rw-r--r--drivers/media/video/mx1_camera.c2
-rw-r--r--drivers/media/video/mx2_camera.c2
-rw-r--r--drivers/media/video/mx3_camera.c2
-rw-r--r--drivers/media/video/omap24xxcam.c2
-rw-r--r--drivers/media/video/pxa_camera.c2
-rw-r--r--drivers/media/video/saa7134/saa7134-core.c2
-rw-r--r--drivers/media/video/sh_mobile_ceu_camera.c2
-rw-r--r--drivers/media/video/sh_vou.c2
-rw-r--r--drivers/media/video/tlg2300/pd-video.c4
-rw-r--r--drivers/media/video/videobuf-core.c47
-rw-r--r--drivers/media/video/videobuf-dvb.c2
-rw-r--r--drivers/staging/cx25821/cx25821-core.c2
-rw-r--r--drivers/staging/dt3155v4l/dt3155v4l.c8
-rw-r--r--include/media/videobuf-core.h3
20 files changed, 58 insertions, 36 deletions
diff --git a/drivers/media/common/saa7146_fops.c b/drivers/media/common/saa7146_fops.c
index 4da2a54cb8b..e3fedc60fe7 100644
--- a/drivers/media/common/saa7146_fops.c
+++ b/drivers/media/common/saa7146_fops.c
@@ -56,7 +56,7 @@ void saa7146_dma_free(struct saa7146_dev *dev,struct videobuf_queue *q,
BUG_ON(in_interrupt());
- videobuf_waiton(&buf->vb,0,0);
+ videobuf_waiton(q, &buf->vb, 0, 0);
videobuf_dma_unmap(q->dev, dma);
videobuf_dma_free(dma);
buf->vb.state = VIDEOBUF_NEEDS_INIT;
diff --git a/drivers/media/video/bt8xx/bttv-risc.c b/drivers/media/video/bt8xx/bttv-risc.c
index 0fa9f39f37a..9b57d091da4 100644
--- a/drivers/media/video/bt8xx/bttv-risc.c
+++ b/drivers/media/video/bt8xx/bttv-risc.c
@@ -582,7 +582,7 @@ bttv_dma_free(struct videobuf_queue *q,struct bttv *btv, struct bttv_buffer *buf
struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb);
BUG_ON(in_interrupt());
- videobuf_waiton(&buf->vb,0,0);
+ videobuf_waiton(q, &buf->vb, 0, 0);
videobuf_dma_unmap(q->dev, dma);
videobuf_dma_free(dma);
btcx_riscmem_free(btv->c.pci,&buf->bottom);
diff --git a/drivers/media/video/cx23885/cx23885-core.c b/drivers/media/video/cx23885/cx23885-core.c
index f6b62e7398a..2a34e955dad 100644
--- a/drivers/media/video/cx23885/cx23885-core.c
+++ b/drivers/media/video/cx23885/cx23885-core.c
@@ -1221,7 +1221,7 @@ void cx23885_free_buffer(struct videobuf_queue *q, struct cx23885_buffer *buf)
struct videobuf_dmabuf *dma = videobuf_to_dma(&buf->vb);
BUG_ON(in_interrupt());
- videobuf_waiton(&buf->vb, 0, 0);
+ videobuf_waiton(q, &buf->vb, 0, 0);
videobuf_dma_unmap(q->dev, dma);
videobuf_dma_free(dma);
btcx_riscmem_free(to_pci_dev(q->dev), &buf->risc);
diff --git a/drivers/media/video/cx88/cx88-core.c b/drivers/media/video/cx88/cx88-core.c
index e46dd7ed63c..2e145f0a5fd 100644
--- a/drivers/media/video/cx88/cx88-core.c
+++ b/drivers/media/video/cx88/cx88-core.c
@@ -217,7 +217,7 @@ cx88_free_buffer(struct videobuf_queue *q, struct cx88_buffer *buf)
struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb);
BUG_ON(in_interrupt());
- videobuf_waiton(&buf->vb,0,0);
+ videobuf_waiton(q, &buf->vb, 0, 0);
videobuf_dma_unmap(q->dev, dma);
videobuf_dma_free(dma);
btcx_riscmem_free(to_pci_dev(q->dev), &buf->risc);
diff --git a/drivers/media/video/fsl-viu.c b/drivers/media/video/fsl-viu.c
index 0b318bed4d5..211e83963a4 100644
--- a/drivers/media/video/fsl-viu.c
+++ b/drivers/media/video/fsl-viu.c
@@ -426,7 +426,7 @@ static void free_buffer(struct videobuf_queue *vq, struct viu_buf *buf)
BUG_ON(in_interrupt());
- videobuf_waiton(&buf->vb, 0, 0);
+ videobuf_waiton(vq, &buf->vb, 0, 0);
if (vq->int_ops && vq->int_ops->vaddr)
vaddr = vq->int_ops->vaddr(vb);
diff --git a/drivers/media/video/mem2mem_testdev.c b/drivers/media/video/mem2mem_testdev.c
index a7210d98138..3b19f5b25a7 100644
--- a/drivers/media/video/mem2mem_testdev.c
+++ b/drivers/media/video/mem2mem_testdev.c
@@ -848,7 +848,7 @@ static void queue_init(void *priv, struct videobuf_queue *vq,
videobuf_queue_vmalloc_init(vq, &m2mtest_qops, ctx->dev->v4l2_dev.dev,
&ctx->dev->irqlock, type, V4L2_FIELD_NONE,
- sizeof(struct m2mtest_buffer), priv);
+ sizeof(struct m2mtest_buffer), priv, NULL);
}
diff --git a/drivers/media/video/mx1_camera.c b/drivers/media/video/mx1_camera.c
index 5c17f9ec3d7..e8a5ffcb6f0 100644
--- a/drivers/media/video/mx1_camera.c
+++ b/drivers/media/video/mx1_camera.c
@@ -161,7 +161,7 @@ static void free_buffer(struct videobuf_queue *vq, struct mx1_buffer *buf)
* This waits until this buffer is out of danger, i.e., until it is no
* longer in STATE_QUEUED or STATE_ACTIVE
*/
- videobuf_waiton(vb, 0, 0);
+ videobuf_waiton(vq, vb, 0, 0);
videobuf_dma_contig_free(vq, vb);
vb->state = VIDEOBUF_NEEDS_INIT;
diff --git a/drivers/media/video/mx2_camera.c b/drivers/media/video/mx2_camera.c
index b6ea67221d1..38d09474da1 100644
--- a/drivers/media/video/mx2_camera.c
+++ b/drivers/media/video/mx2_camera.c
@@ -463,7 +463,7 @@ static void free_buffer(struct videobuf_queue *vq, struct mx2_buffer *buf)
* This waits until this buffer is out of danger, i.e., until it is no
* longer in STATE_QUEUED or STATE_ACTIVE
*/
- videobuf_waiton(vb, 0, 0);
+ videobuf_waiton(vq, vb, 0, 0);
videobuf_dma_contig_free(vq, vb);
dev_dbg(&icd->dev, "%s freed\n", __func__);
diff --git a/drivers/media/video/mx3_camera.c b/drivers/media/video/mx3_camera.c
index a9be14c2391..a13076969e5 100644
--- a/drivers/media/video/mx3_camera.c
+++ b/drivers/media/video/mx3_camera.c
@@ -185,7 +185,7 @@ static void free_buffer(struct videobuf_queue *vq, struct mx3_camera_buffer *buf
* This waits until this buffer is out of danger, i.e., until it is no
* longer in STATE_QUEUED or STATE_ACTIVE
*/
- videobuf_waiton(vb, 0, 0);
+ videobuf_waiton(vq, vb, 0, 0);
if (txd) {
ichan = to_idmac_chan(txd->chan);
async_tx_ack(txd);
diff --git a/drivers/media/video/omap24xxcam.c b/drivers/media/video/omap24xxcam.c
index 926a5aa6f7f..13c09f5fa87 100644
--- a/drivers/media/video/omap24xxcam.c
+++ b/drivers/media/video/omap24xxcam.c
@@ -420,7 +420,7 @@ static void omap24xxcam_vbq_release(struct videobuf_queue *vbq,
struct videobuf_dmabuf *dma = videobuf_to_dma(vb);
/* wait for buffer, especially to get out of the sgdma queue */
- videobuf_waiton(vb, 0, 0);
+ videobuf_waiton(vbq, vb, 0, 0);
if (vb->memory == V4L2_MEMORY_MMAP) {
dma_unmap_sg(vbq->dev, dma->sglist, dma->sglen,
dma->direction);
diff --git a/drivers/media/video/pxa_camera.c b/drivers/media/video/pxa_camera.c
index 9de7d59916b..109ba99ae12 100644
--- a/drivers/media/video/pxa_camera.c
+++ b/drivers/media/video/pxa_camera.c
@@ -275,7 +275,7 @@ static void free_buffer(struct videobuf_queue *vq, struct pxa_buffer *buf)
* This waits until this buffer is out of danger, i.e., until it is no
* longer in STATE_QUEUED or STATE_ACTIVE
*/
- videobuf_waiton(&buf->vb, 0, 0);
+ videobuf_waiton(vq, &buf->vb, 0, 0);
videobuf_dma_unmap(vq->dev, dma);
videobuf_dma_free(dma);
diff --git a/drivers/media/video/saa7134/saa7134-core.c b/drivers/media/video/saa7134/saa7134-core.c
index 40bc635e8a3..c424c4574d4 100644
--- a/drivers/media/video/saa7134/saa7134-core.c
+++ b/drivers/media/video/saa7134/saa7134-core.c
@@ -255,7 +255,7 @@ void saa7134_dma_free(struct videobuf_queue *q,struct saa7134_buf *buf)
struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb);
BUG_ON(in_interrupt());
- videobuf_waiton(&buf->vb,0,0);
+ videobuf_waiton(q, &buf->vb, 0, 0);
videobuf_dma_unmap(q->dev, dma);
videobuf_dma_free(dma);
buf->vb.state = VIDEOBUF_NEEDS_INIT;
diff --git a/drivers/media/video/sh_mobile_ceu_camera.c b/drivers/media/video/sh_mobile_ceu_camera.c
index 2b24bd0de3a..39211628d42 100644
--- a/drivers/media/video/sh_mobile_ceu_camera.c
+++ b/drivers/media/video/sh_mobile_ceu_camera.c
@@ -245,7 +245,7 @@ static void free_buffer(struct videobuf_queue *vq,
if (in_interrupt())
BUG();
- videobuf_waiton(&buf->vb, 0, 0);
+ videobuf_waiton(vq, &buf->vb, 0, 0);
videobuf_dma_contig_free(vq, &buf->vb);
dev_dbg(dev, "%s freed\n", __func__);
buf->vb.state = VIDEOBUF_NEEDS_INIT;
diff --git a/drivers/media/video/sh_vou.c b/drivers/media/video/sh_vou.c
index d394187eb70..d3acd02a163 100644
--- a/drivers/media/video/sh_vou.c
+++ b/drivers/media/video/sh_vou.c
@@ -230,7 +230,7 @@ static void free_buffer(struct videobuf_queue *vq, struct videobuf_buffer *vb)
BUG_ON(in_interrupt());
/* Wait until this buffer is no longer in STATE_QUEUED or STATE_ACTIVE */
- videobuf_waiton(vb, 0, 0);
+ videobuf_waiton(vq, vb, 0, 0);
videobuf_dma_contig_free(vq, vb);
vb->state = VIDEOBUF_NEEDS_INIT;
}
diff --git a/drivers/media/video/tlg2300/pd-video.c b/drivers/media/video/tlg2300/pd-video.c
index d0cc012f7ae..a1ffe18640f 100644
--- a/drivers/media/video/tlg2300/pd-video.c
+++ b/drivers/media/video/tlg2300/pd-video.c
@@ -1434,7 +1434,7 @@ static int pd_video_open(struct file *file)
V4L2_BUF_TYPE_VIDEO_CAPTURE,
V4L2_FIELD_INTERLACED,/* video is interlacd */
sizeof(struct videobuf_buffer),/*it's enough*/
- front);
+ front, NULL);
} else if (vfd->vfl_type == VFL_TYPE_VBI
&& !(pd->state & POSEIDON_STATE_VBI)) {
front = kzalloc(sizeof(struct front_face), GFP_KERNEL);
@@ -1451,7 +1451,7 @@ static int pd_video_open(struct file *file)
V4L2_BUF_TYPE_VBI_CAPTURE,
V4L2_FIELD_NONE, /* vbi is NONE mode */
sizeof(struct videobuf_buffer),
- front);
+ front, NULL);
} else {
/* maybe add FM support here */
log("other ");
diff --git a/drivers/media/video/videobuf-core.c b/drivers/media/video/videobuf-core.c
index a32ef8eafc0..8979f91fa8e 100644
--- a/drivers/media/video/videobuf-core.c
+++ b/drivers/media/video/videobuf-core.c
@@ -73,25 +73,46 @@ struct videobuf_buffer *videobuf_alloc_vb(struct videobuf_queue *q)
}
EXPORT_SYMBOL_GPL(videobuf_alloc_vb);
-#define WAITON_CONDITION (vb->state != VIDEOBUF_ACTIVE &&\
- vb->state != VIDEOBUF_QUEUED)
-int videobuf_waiton(struct videobuf_buffer *vb, int non_blocking, int intr)
+static int is_state_active_or_queued(struct videobuf_queue *q, struct videobuf_buffer *vb)
{
+ unsigned long flags;
+ bool rc;
+
+ spin_lock_irqsave(q->irqlock, flags);
+ rc = vb->state != VIDEOBUF_ACTIVE && vb->state != VIDEOBUF_QUEUED;
+ spin_unlock_irqrestore(q->irqlock, flags);
+ return rc;
+};
+
+int videobuf_waiton(struct videobuf_queue *q, struct videobuf_buffer *vb,
+ int non_blocking, int intr)
+{
+ bool is_ext_locked;
+ int ret = 0;
+
MAGIC_CHECK(vb->magic, MAGIC_BUFFER);
if (non_blocking) {
- if (WAITON_CONDITION)
+ if (is_state_active_or_queued(q, vb))
return 0;
- else
- return -EAGAIN;
+ return -EAGAIN;
}
+ is_ext_locked = q->ext_lock && mutex_is_locked(q->ext_lock);
+
+ /* Release vdev lock to prevent this wait from blocking outside access to
+ the device. */
+ if (is_ext_locked)
+ mutex_unlock(q->ext_lock);
if (intr)
- return wait_event_interruptible(vb->done, WAITON_CONDITION);
+ ret = wait_event_interruptible(vb->done, is_state_active_or_queued(q, vb));
else
- wait_event(vb->done, WAITON_CONDITION);
+ wait_event(vb->done, is_state_active_or_queued(q, vb));
+ /* Relock */
+ if (is_ext_locked)
+ mutex_lock(q->ext_lock);
- return 0;
+ return ret;
}
EXPORT_SYMBOL_GPL(videobuf_waiton);
@@ -671,7 +692,7 @@ static int stream_next_buffer(struct videobuf_queue *q,
goto done;
buf = list_entry(q->stream.next, struct videobuf_buffer, stream);
- retval = videobuf_waiton(buf, nonblocking, 1);
+ retval = videobuf_waiton(q, buf, nonblocking, 1);
if (retval < 0)
goto done;
@@ -799,7 +820,7 @@ static ssize_t videobuf_read_zerocopy(struct videobuf_queue *q,
spin_lock_irqsave(q->irqlock, flags);
q->ops->buf_queue(q, q->read_buf);
spin_unlock_irqrestore(q->irqlock, flags);
- retval = videobuf_waiton(q->read_buf, 0, 0);
+ retval = videobuf_waiton(q, q->read_buf, 0, 0);
if (0 == retval) {
CALL(q, sync, q, q->read_buf);
if (VIDEOBUF_ERROR == q->read_buf->state)
@@ -911,7 +932,7 @@ ssize_t videobuf_read_one(struct videobuf_queue *q,
}
/* wait until capture is done */
- retval = videobuf_waiton(q->read_buf, nonblocking, 1);
+ retval = videobuf_waiton(q, q->read_buf, nonblocking, 1);
if (0 != retval)
goto done;
@@ -1061,7 +1082,7 @@ ssize_t videobuf_read_stream(struct videobuf_queue *q,
list_del(&q->read_buf->stream);
q->read_off = 0;
}
- rc = videobuf_waiton(q->read_buf, nonblocking, 1);
+ rc = videobuf_waiton(q, q->read_buf, nonblocking, 1);
if (rc < 0) {
if (0 == retval)
retval = rc;
diff --git a/drivers/media/video/videobuf-dvb.c b/drivers/media/video/videobuf-dvb.c
index 3f76398968b..3de7c7e4402 100644
--- a/drivers/media/video/videobuf-dvb.c
+++ b/drivers/media/video/videobuf-dvb.c
@@ -57,7 +57,7 @@ static int videobuf_dvb_thread(void *data)
buf = list_entry(dvb->dvbq.stream.next,
struct videobuf_buffer, stream);
list_del(&buf->stream);
- err = videobuf_waiton(buf,0,1);
+ err = videobuf_waiton(&dvb->dvbq, buf, 0, 1);
/* no more feeds left or stop_feed() asked us to quit */
if (0 == dvb->nfeeds)
diff --git a/drivers/staging/cx25821/cx25821-core.c b/drivers/staging/cx25821/cx25821-core.c
index c487c19256b..03391f41339 100644
--- a/drivers/staging/cx25821/cx25821-core.c
+++ b/drivers/staging/cx25821/cx25821-core.c
@@ -1319,7 +1319,7 @@ void cx25821_free_buffer(struct videobuf_queue *q, struct cx25821_buffer *buf)
struct videobuf_dmabuf *dma = videobuf_to_dma(&buf->vb);
BUG_ON(in_interrupt());
- videobuf_waiton(&buf->vb, 0, 0);
+ videobuf_waiton(q, &buf->vb, 0, 0);
videobuf_dma_unmap(q->dev, dma);
videobuf_dma_free(dma);
btcx_riscmem_free(to_pci_dev(q->dev), &buf->risc);
diff --git a/drivers/staging/dt3155v4l/dt3155v4l.c b/drivers/staging/dt3155v4l/dt3155v4l.c
index fd48b38e797..b996697e7eb 100644
--- a/drivers/staging/dt3155v4l/dt3155v4l.c
+++ b/drivers/staging/dt3155v4l/dt3155v4l.c
@@ -293,7 +293,7 @@ static void
dt3155_buf_release(struct videobuf_queue *q, struct videobuf_buffer *vb)
{
if (vb->state == VIDEOBUF_ACTIVE)
- videobuf_waiton(vb, 0, 0); /* FIXME: cannot be interrupted */
+ videobuf_waiton(q, vb, 0, 0); /* FIXME: cannot be interrupted */
videobuf_dma_contig_free(q, vb);
vb->state = VIDEOBUF_NEEDS_INIT;
}
@@ -440,7 +440,7 @@ dt3155_open(struct file *filp)
videobuf_queue_dma_contig_init(pd->vidq, &vbq_ops,
&pd->pdev->dev, &pd->lock,
V4L2_BUF_TYPE_VIDEO_CAPTURE, V4L2_FIELD_NONE,
- sizeof(struct videobuf_buffer), pd);
+ sizeof(struct videobuf_buffer), pd, NULL);
/* disable all irqs, clear all irq flags */
iowrite32(FLD_START | FLD_END_EVEN | FLD_END_ODD,
pd->regs + INT_CSR);
@@ -494,7 +494,7 @@ dt3155_release(struct file *filp)
tmp = pd->curr_buf;
spin_unlock_irqrestore(&pd->lock, flags);
if (tmp)
- videobuf_waiton(tmp, 0, 1); /* block, interruptible */
+ videobuf_waiton(pd->vidq, tmp, 0, 1); /* block, interruptible */
dt3155_stop_acq(pd);
videobuf_stop(pd->vidq);
pd->acq_fp = NULL;
@@ -603,7 +603,7 @@ dt3155_ioc_streamoff(struct file *filp, void *p, enum v4l2_buf_type type)
tmp = pd->curr_buf;
spin_unlock_irqrestore(&pd->lock, flags);
if (tmp)
- videobuf_waiton(tmp, 0, 1); /* block, interruptible */
+ videobuf_waiton(pd->vidq, tmp, 0, 1); /* block, interruptible */
return ret;
}
diff --git a/include/media/videobuf-core.h b/include/media/videobuf-core.h
index 9a4194557e4..1d3835fc26b 100644
--- a/include/media/videobuf-core.h
+++ b/include/media/videobuf-core.h
@@ -180,7 +180,8 @@ static inline void videobuf_queue_unlock(struct videobuf_queue *q)
mutex_unlock(&q->vb_lock);
}
-int videobuf_waiton(struct videobuf_buffer *vb, int non_blocking, int intr);
+int videobuf_waiton(struct videobuf_queue *q, struct videobuf_buffer *vb,
+ int non_blocking, int intr);
int videobuf_iolock(struct videobuf_queue *q, struct videobuf_buffer *vb,
struct v4l2_framebuffer *fbuf);