Use the core-assisted locking in fsl-viu driver and switch to .unlocked_ioctl.
Signed-off-by: Anatolij Gustschin <[email protected]> --- drivers/media/video/fsl-viu.c | 20 +++++++++++++------- 1 files changed, 13 insertions(+), 7 deletions(-) diff --git a/drivers/media/video/fsl-viu.c b/drivers/media/video/fsl-viu.c index e4bba88..a20b166 100644 --- a/drivers/media/video/fsl-viu.c +++ b/drivers/media/video/fsl-viu.c @@ -825,13 +825,11 @@ static int vidioc_s_fmt_overlay(struct file *file, void *priv, if (err) return err; - mutex_lock(&dev->lock); fh->win = f->fmt.win; spin_lock_irqsave(&dev->slock, flags); viu_start_preview(dev, fh); spin_unlock_irqrestore(&dev->slock, flags); - mutex_unlock(&dev->lock); return 0; } @@ -1311,7 +1309,8 @@ static int viu_open(struct file *file) videobuf_queue_dma_contig_init(&fh->vb_vidq, &viu_video_qops, dev->dev, &fh->vbq_lock, fh->type, V4L2_FIELD_INTERLACED, - sizeof(struct viu_buf), fh, NULL); + sizeof(struct viu_buf), fh, + &fh->dev->lock); return 0; } @@ -1401,7 +1400,7 @@ static struct v4l2_file_operations viu_fops = { .release = viu_release, .read = viu_read, .poll = viu_poll, - .ioctl = video_ioctl2, /* V4L2 ioctl handler */ + .unlocked_ioctl = video_ioctl2, /* V4L2 ioctl handler */ .mmap = viu_mmap, }; @@ -1499,9 +1498,6 @@ static int __devinit viu_of_probe(struct platform_device *op, INIT_LIST_HEAD(&viu_dev->vidq.active); INIT_LIST_HEAD(&viu_dev->vidq.queued); - /* initialize locks */ - mutex_init(&viu_dev->lock); - snprintf(viu_dev->v4l2_dev.name, sizeof(viu_dev->v4l2_dev.name), "%s", "VIU"); ret = v4l2_device_register(viu_dev->dev, &viu_dev->v4l2_dev); @@ -1532,8 +1528,15 @@ static int __devinit viu_of_probe(struct platform_device *op, viu_dev->vdev = vdev; + /* initialize locks */ + mutex_init(&viu_dev->lock); + viu_dev->vdev->lock = &viu_dev->lock; + spin_lock_init(&viu_dev->slock); + video_set_drvdata(viu_dev->vdev, viu_dev); + mutex_lock(&viu_dev->lock); + ret = video_register_device(viu_dev->vdev, VFL_TYPE_GRABBER, -1); if (ret < 0) { video_device_release(viu_dev->vdev); @@ -1560,6 +1563,8 @@ static int __devinit viu_of_probe(struct platform_device *op, goto err_irq; } + mutex_unlock(&viu_dev->lock); + dev_info(&op->dev, "Freescale VIU Video Capture Board\n"); return ret; @@ -1569,6 +1574,7 @@ err_irq: err_clk: video_unregister_device(viu_dev->vdev); err_vdev: + mutex_unlock(&viu_dev->lock); i2c_put_adapter(ad); v4l2_device_unregister(&viu_dev->v4l2_dev); err: -- 1.7.1 -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
