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| author | Hans Verkuil <hverkuil@xs4all.nl> | 2010-09-26 09:01:26 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2010-10-21 01:06:14 -0200 |
| commit | 0e0809a58869e3e422985f868ad5e0da1fc0ba85 (patch) | |
| tree | e4895d60a050e15d6c4b21aa7dbc4090199efdf3 /drivers/staging/dt3155v4l | |
| parent | 08bff03ed697a583612b62a6ac566bd5bce98012 (diff) | |
| download | talos-op-linux-0e0809a58869e3e422985f868ad5e0da1fc0ba85.tar.gz talos-op-linux-0e0809a58869e3e422985f868ad5e0da1fc0ba85.zip | |
V4L/DVB: videobuf: add queue argument to videobuf_waiton()
videobuf_waiton() must unlock and relock ext_lock if it has to wait.
For that to happen it needs the videobuf_queue pointer.
Don't attempt to unlock/relock q->ext_lock unless it was locked in the
first place.
vb->state has to be protected by a spinlock to be safe.
This patch is based on code from Mauro Carvalho Chehab <mchehab@redhat.com>.
[mchehab@redhat.com: add extra argument to a few missing places]
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/staging/dt3155v4l')
| -rw-r--r-- | drivers/staging/dt3155v4l/dt3155v4l.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/staging/dt3155v4l/dt3155v4l.c b/drivers/staging/dt3155v4l/dt3155v4l.c index fd48b38e797c..b996697e7eb2 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; } |
