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[media] saa7134: remove dev from saa7134_fh, use saa7134_fh for empress node 

Use the saa7134_fh struct for the empress video node as well, drop the dev
pointer from that struct since we can use drvdata for that.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
Hans Verkuil 2013-12-14 08:28:26 -03:00 committed by Mauro Carvalho Chehab
parent b93a18d560
commit b9f63b2595
3 changed files with 76 additions and 85 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

42
drivers/media/pci/saa7134/saa7134-empress.c
View File

@ -85,6 +85,7 @@ static int ts_open(struct file *file)
{
struct video_device *vdev = video_devdata(file);
struct saa7134_dev *dev = video_drvdata(file);
struct saa7134_fh *fh;
int err;
dprintk("open dev=%s\n", video_device_node_name(vdev));
@ -94,12 +95,22 @@ static int ts_open(struct file *file)
if (atomic_read(&dev->empress_users))
goto done;
/* allocate + initialize per filehandle data */
fh = kzalloc(sizeof(*fh), GFP_KERNEL);
err = -ENOMEM;
if (NULL == fh)
goto done;
v4l2_fh_init(&fh->fh, vdev);
file->private_data = fh;
fh->is_empress = true;
v4l2_fh_add(&fh->fh);
/* Unmute audio */
saa_writeb(SAA7134_AUDIO_MUTE_CTRL,
saa_readb(SAA7134_AUDIO_MUTE_CTRL) & ~(1 << 6));
atomic_inc(&dev->empress_users);
file->private_data = dev;
err = 0;
done:
@ -109,7 +120,8 @@ done:
static int ts_release(struct file *file)
{
struct saa7134_dev *dev = file->private_data;
struct saa7134_dev *dev = video_drvdata(file);
struct saa7134_fh *fh = file->private_data;
videobuf_stop(&dev->empress_tsq);
videobuf_mmap_free(&dev->empress_tsq);
@ -123,13 +135,15 @@ static int ts_release(struct file *file)
atomic_dec(&dev->empress_users);
v4l2_fh_del(&fh->fh);
v4l2_fh_exit(&fh->fh);
return 0;
}
static ssize_t
ts_read(struct file *file, char __user *data, size_t count, loff_t *ppos)
{
struct saa7134_dev *dev = file->private_data;
struct saa7134_dev *dev = video_drvdata(file);
if (!dev->empress_started)
ts_init_encoder(dev);
@ -142,7 +156,7 @@ ts_read(struct file *file, char __user *data, size_t count, loff_t *ppos)
static unsigned int
ts_poll(struct file *file, struct poll_table_struct *wait)
{
struct saa7134_dev *dev = file->private_data;
struct saa7134_dev *dev = video_drvdata(file);
return videobuf_poll_stream(file, &dev->empress_tsq, wait);
}
@ -151,7 +165,7 @@ ts_poll(struct file *file, struct poll_table_struct *wait)
static int
ts_mmap(struct file *file, struct vm_area_struct * vma)
{
struct saa7134_dev *dev = file->private_data;
struct saa7134_dev *dev = video_drvdata(file);
return videobuf_mmap_mapper(&dev->empress_tsq, vma);
}
@ -171,7 +185,7 @@ static int empress_enum_fmt_vid_cap(struct file *file, void *priv,
static int empress_g_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
struct saa7134_dev *dev = file->private_data;
struct saa7134_dev *dev = video_drvdata(file);
struct v4l2_mbus_framefmt mbus_fmt;
saa_call_all(dev, video, g_mbus_fmt, &mbus_fmt);
@ -188,7 +202,7 @@ static int empress_g_fmt_vid_cap(struct file *file, void *priv,
static int empress_s_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
struct saa7134_dev *dev = file->private_data;
struct saa7134_dev *dev = video_drvdata(file);
struct v4l2_mbus_framefmt mbus_fmt;
v4l2_fill_mbus_format(&mbus_fmt, &f->fmt.pix, V4L2_MBUS_FMT_FIXED);
@ -206,7 +220,7 @@ static int empress_s_fmt_vid_cap(struct file *file, void *priv,
static int empress_try_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
struct saa7134_dev *dev = file->private_data;
struct saa7134_dev *dev = video_drvdata(file);
struct v4l2_mbus_framefmt mbus_fmt;
v4l2_fill_mbus_format(&mbus_fmt, &f->fmt.pix, V4L2_MBUS_FMT_FIXED);
@ -224,7 +238,7 @@ static int empress_try_fmt_vid_cap(struct file *file, void *priv,
static int empress_reqbufs(struct file *file, void *priv,
struct v4l2_requestbuffers *p)
{
struct saa7134_dev *dev = file->private_data;
struct saa7134_dev *dev = video_drvdata(file);
return videobuf_reqbufs(&dev->empress_tsq, p);
}
@ -232,21 +246,21 @@ static int empress_reqbufs(struct file *file, void *priv,
static int empress_querybuf(struct file *file, void *priv,
struct v4l2_buffer *b)
{
struct saa7134_dev *dev = file->private_data;
struct saa7134_dev *dev = video_drvdata(file);
return videobuf_querybuf(&dev->empress_tsq, b);
}
static int empress_qbuf(struct file *file, void *priv, struct v4l2_buffer *b)
{
struct saa7134_dev *dev = file->private_data;
struct saa7134_dev *dev = video_drvdata(file);
return videobuf_qbuf(&dev->empress_tsq, b);
}
static int empress_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b)
{
struct saa7134_dev *dev = file->private_data;
struct saa7134_dev *dev = video_drvdata(file);
return videobuf_dqbuf(&dev->empress_tsq, b,
file->f_flags & O_NONBLOCK);
@ -255,7 +269,7 @@ static int empress_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b)
static int empress_streamon(struct file *file, void *priv,
enum v4l2_buf_type type)
{
struct saa7134_dev *dev = file->private_data;
struct saa7134_dev *dev = video_drvdata(file);
return videobuf_streamon(&dev->empress_tsq);
}
@ -263,7 +277,7 @@ static int empress_streamon(struct file *file, void *priv,
static int empress_streamoff(struct file *file, void *priv,
enum v4l2_buf_type type)
{
struct saa7134_dev *dev = file->private_data;
struct saa7134_dev *dev = video_drvdata(file);
return videobuf_streamoff(&dev->empress_tsq);
}

117
drivers/media/pci/saa7134/saa7134-video.c
View File

@ -1090,8 +1090,7 @@ static int saa7134_s_ctrl(struct v4l2_ctrl *ctrl)
static struct videobuf_queue *saa7134_queue(struct file *file)
{
struct video_device *vdev = video_devdata(file);
struct saa7134_fh *fh = file->private_data;
struct saa7134_dev *dev = fh->dev;
struct saa7134_dev *dev = video_drvdata(file);
struct videobuf_queue *q = NULL;
switch (vdev->vfl_type) {
@ -1134,7 +1133,6 @@ static int video_open(struct file *file)
v4l2_fh_init(&fh->fh, vdev);
file->private_data = fh;
fh->dev = dev;
if (vdev->vfl_type == VFL_TYPE_RADIO) {
/* switch to radio mode */
@ -1153,17 +1151,18 @@ static ssize_t
video_read(struct file *file, char __user *data, size_t count, loff_t *ppos)
{
struct video_device *vdev = video_devdata(file);
struct saa7134_dev *dev = video_drvdata(file);
struct saa7134_fh *fh = file->private_data;
switch (vdev->vfl_type) {
case VFL_TYPE_GRABBER:
if (res_locked(fh->dev,RESOURCE_VIDEO))
if (res_locked(dev, RESOURCE_VIDEO))
return -EBUSY;
return videobuf_read_one(saa7134_queue(file),
data, count, ppos,
file->f_flags & O_NONBLOCK);
case VFL_TYPE_VBI:
if (!res_get(fh->dev,fh,RESOURCE_VBI))
if (!res_get(dev, fh, RESOURCE_VBI))
return -EBUSY;
return videobuf_read_stream(saa7134_queue(file),
data, count, ppos, 1,
@ -1179,15 +1178,15 @@ static unsigned int
video_poll(struct file *file, struct poll_table_struct *wait)
{
struct video_device *vdev = video_devdata(file);
struct saa7134_dev *dev = video_drvdata(file);
struct saa7134_fh *fh = file->private_data;
struct saa7134_dev *dev = fh->dev;
struct videobuf_buffer *buf = NULL;
unsigned int rc = 0;
if (vdev->vfl_type == VFL_TYPE_VBI)
return videobuf_poll_stream(file, &dev->vbi, wait);
if (res_check(fh,RESOURCE_VIDEO)) {
if (res_check(fh, RESOURCE_VIDEO)) {
mutex_lock(&dev->cap.vb_lock);
if (!list_empty(&dev->cap.stream))
buf = list_entry(dev->cap.stream.next, struct videobuf_buffer, stream);
@ -1195,7 +1194,7 @@ video_poll(struct file *file, struct poll_table_struct *wait)
mutex_lock(&dev->cap.vb_lock);
if (UNSET == dev->cap.read_off) {
/* need to capture a new frame */
if (res_locked(fh->dev,RESOURCE_VIDEO))
if (res_locked(dev, RESOURCE_VIDEO))
goto err;
if (0 != dev->cap.ops->buf_prepare(&dev->cap,
dev->cap.read_buf, dev->cap.field))
@ -1224,8 +1223,8 @@ err:
static int video_release(struct file *file)
{
struct video_device *vdev = video_devdata(file);
struct saa7134_fh *fh = file->private_data;
struct saa7134_dev *dev = fh->dev;
struct saa7134_dev *dev = video_drvdata(file);
struct saa7134_fh *fh = file->private_data;
struct saa6588_command cmd;
unsigned long flags;
@ -1236,14 +1235,14 @@ static int video_release(struct file *file)
spin_lock_irqsave(&dev->slock,flags);
stop_preview(dev);
spin_unlock_irqrestore(&dev->slock,flags);
res_free(dev,fh,RESOURCE_OVERLAY);
res_free(dev, fh, RESOURCE_OVERLAY);
}
/* stop video capture */
if (res_check(fh, RESOURCE_VIDEO)) {
pm_qos_remove_request(&dev->qos_request);
videobuf_streamoff(&dev->cap);
res_free(dev,fh,RESOURCE_VIDEO);
res_free(dev, fh, RESOURCE_VIDEO);
videobuf_mmap_free(&dev->cap);
}
if (dev->cap.read_buf) {
@ -1254,7 +1253,7 @@ static int video_release(struct file *file)
/* stop vbi capture */
if (res_check(fh, RESOURCE_VBI)) {
videobuf_stop(&dev->vbi);
res_free(dev,fh,RESOURCE_VBI);
res_free(dev, fh, RESOURCE_VBI);
videobuf_mmap_free(&dev->vbi);
}
@ -1283,8 +1282,7 @@ static int video_mmap(struct file *file, struct vm_area_struct * vma)
static ssize_t radio_read(struct file *file, char __user *data,
size_t count, loff_t *ppos)
{
struct saa7134_fh *fh = file->private_data;
struct saa7134_dev *dev = fh->dev;
struct saa7134_dev *dev = video_drvdata(file);
struct saa6588_command cmd;
cmd.block_count = count/3;
@ -1299,8 +1297,7 @@ static ssize_t radio_read(struct file *file, char __user *data,
static unsigned int radio_poll(struct file *file, poll_table *wait)
{
struct saa7134_fh *fh = file->private_data;
struct saa7134_dev *dev = fh->dev;
struct saa7134_dev *dev = video_drvdata(file);
struct saa6588_command cmd;
cmd.instance = file;
@ -1316,8 +1313,7 @@ static unsigned int radio_poll(struct file *file, poll_table *wait)
static int saa7134_try_get_set_fmt_vbi_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
struct saa7134_fh *fh = priv;
struct saa7134_dev *dev = fh->dev;
struct saa7134_dev *dev = video_drvdata(file);
struct saa7134_tvnorm *norm = dev->tvnorm;
memset(&f->fmt.vbi.reserved, 0, sizeof(f->fmt.vbi.reserved));
@ -1337,8 +1333,7 @@ static int saa7134_try_get_set_fmt_vbi_cap(struct file *file, void *priv,
static int saa7134_g_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
struct saa7134_fh *fh = priv;
struct saa7134_dev *dev = fh->dev;
struct saa7134_dev *dev = video_drvdata(file);
f->fmt.pix.width = dev->width;
f->fmt.pix.height = dev->height;
@ -1356,8 +1351,7 @@ static int saa7134_g_fmt_vid_cap(struct file *file, void *priv,
static int saa7134_g_fmt_vid_overlay(struct file *file, void *priv,
struct v4l2_format *f)
{
struct saa7134_fh *fh = priv;
struct saa7134_dev *dev = fh->dev;
struct saa7134_dev *dev = video_drvdata(file);
struct v4l2_clip __user *clips = f->fmt.win.clips;
u32 clipcount = f->fmt.win.clipcount;
int err = 0;
@ -1389,8 +1383,7 @@ static int saa7134_g_fmt_vid_overlay(struct file *file, void *priv,
static int saa7134_try_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
struct saa7134_fh *fh = priv;
struct saa7134_dev *dev = fh->dev;
struct saa7134_dev *dev = video_drvdata(file);
struct saa7134_format *fmt;
enum v4l2_field field;
unsigned int maxw, maxh;
@ -1441,8 +1434,7 @@ static int saa7134_try_fmt_vid_cap(struct file *file, void *priv,
static int saa7134_try_fmt_vid_overlay(struct file *file, void *priv,
struct v4l2_format *f)
{
struct saa7134_fh *fh = priv;
struct saa7134_dev *dev = fh->dev;
struct saa7134_dev *dev = video_drvdata(file);
if (saa7134_no_overlay > 0) {
printk(KERN_ERR "V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
@ -1457,8 +1449,7 @@ static int saa7134_try_fmt_vid_overlay(struct file *file, void *priv,
static int saa7134_s_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
struct saa7134_fh *fh = priv;
struct saa7134_dev *dev = fh->dev;
struct saa7134_dev *dev = video_drvdata(file);
int err;
err = saa7134_try_fmt_vid_cap(file, priv, f);
@ -1475,8 +1466,7 @@ static int saa7134_s_fmt_vid_cap(struct file *file, void *priv,
static int saa7134_s_fmt_vid_overlay(struct file *file, void *priv,
struct v4l2_format *f)
{
struct saa7134_fh *fh = priv;
struct saa7134_dev *dev = fh->dev;
struct saa7134_dev *dev = video_drvdata(file);
int err;
unsigned long flags;
@ -1501,7 +1491,7 @@ static int saa7134_s_fmt_vid_overlay(struct file *file, void *priv,
return -EFAULT;
}
if (res_check(fh, RESOURCE_OVERLAY)) {
if (res_check(priv, RESOURCE_OVERLAY)) {
spin_lock_irqsave(&dev->slock, flags);
stop_preview(dev);
start_preview(dev);
@ -1572,6 +1562,7 @@ int saa7134_querycap(struct file *file, void *priv,
{
struct saa7134_dev *dev = video_drvdata(file);
struct video_device *vdev = video_devdata(file);
struct saa7134_fh *fh = priv;
u32 radio_caps, video_caps, vbi_caps;
unsigned int tuner_type = dev->tuner_type;
@ -1590,8 +1581,7 @@ int saa7134_querycap(struct file *file, void *priv,
radio_caps |= V4L2_CAP_RDS_CAPTURE;
video_caps = V4L2_CAP_VIDEO_CAPTURE;
/* For the empress video node priv == dev */
if (saa7134_no_overlay <= 0 && priv != dev)
if (saa7134_no_overlay <= 0 && !fh->is_empress)
video_caps |= V4L2_CAP_VIDEO_OVERLAY;
vbi_caps = V4L2_CAP_VBI_CAPTURE;
@ -1622,13 +1612,12 @@ EXPORT_SYMBOL_GPL(saa7134_querycap);
int saa7134_s_std(struct file *file, void *priv, v4l2_std_id id)
{
struct saa7134_dev *dev = video_drvdata(file);
/* For the empress video node priv == dev */
bool is_empress = priv == dev;
struct saa7134_fh *fh = priv;
unsigned long flags;
unsigned int i;
v4l2_std_id fixup;
if (is_empress && res_locked(dev, RESOURCE_OVERLAY)) {
if (fh->is_empress && res_locked(dev, RESOURCE_OVERLAY)) {
/* Don't change the std from the mpeg device
if overlay is active. */
return -EBUSY;
@ -1668,7 +1657,7 @@ int saa7134_s_std(struct file *file, void *priv, v4l2_std_id id)
id = tvnorms[i].id;
mutex_lock(&dev->lock);
if (!is_empress && res_check(priv, RESOURCE_OVERLAY)) {
if (!fh->is_empress && res_check(fh, RESOURCE_OVERLAY)) {
spin_lock_irqsave(&dev->slock, flags);
stop_preview(dev);
spin_unlock_irqrestore(&dev->slock, flags);
@ -1699,8 +1688,7 @@ EXPORT_SYMBOL_GPL(saa7134_g_std);
static int saa7134_cropcap(struct file *file, void *priv,
struct v4l2_cropcap *cap)
{
struct saa7134_fh *fh = priv;
struct saa7134_dev *dev = fh->dev;
struct saa7134_dev *dev = video_drvdata(file);
if (cap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
cap->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
@ -1722,8 +1710,7 @@ static int saa7134_cropcap(struct file *file, void *priv,
static int saa7134_g_crop(struct file *file, void *f, struct v4l2_crop *crop)
{
struct saa7134_fh *fh = f;
struct saa7134_dev *dev = fh->dev;
struct saa7134_dev *dev = video_drvdata(file);
if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
crop->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
@ -1734,8 +1721,7 @@ static int saa7134_g_crop(struct file *file, void *f, struct v4l2_crop *crop)
static int saa7134_s_crop(struct file *file, void *f, const struct v4l2_crop *crop)
{
struct saa7134_fh *fh = f;
struct saa7134_dev *dev = fh->dev;
struct saa7134_dev *dev = video_drvdata(file);
struct v4l2_rect *b = &dev->crop_bounds;
struct v4l2_rect *c = &dev->crop_current;
@ -1747,9 +1733,9 @@ static int saa7134_s_crop(struct file *file, void *f, const struct v4l2_crop *cr
if (crop->c.width < 0)
return -EINVAL;
if (res_locked(fh->dev, RESOURCE_OVERLAY))
if (res_locked(dev, RESOURCE_OVERLAY))
return -EBUSY;
if (res_locked(fh->dev, RESOURCE_VIDEO))
if (res_locked(dev, RESOURCE_VIDEO))
return -EBUSY;
*c = crop->c;
@ -1889,8 +1875,7 @@ static int saa7134_enum_fmt_vid_overlay(struct file *file, void *priv,
static int saa7134_g_fbuf(struct file *file, void *f,
struct v4l2_framebuffer *fb)
{
struct saa7134_fh *fh = f;
struct saa7134_dev *dev = fh->dev;
struct saa7134_dev *dev = video_drvdata(file);
*fb = dev->ovbuf;
fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
@ -1901,8 +1886,7 @@ static int saa7134_g_fbuf(struct file *file, void *f,
static int saa7134_s_fbuf(struct file *file, void *f,
const struct v4l2_framebuffer *fb)
{
struct saa7134_fh *fh = f;
struct saa7134_dev *dev = fh->dev;
struct saa7134_dev *dev = video_drvdata(file);
struct saa7134_format *fmt;
if (!capable(CAP_SYS_ADMIN) &&
@ -1923,10 +1907,9 @@ static int saa7134_s_fbuf(struct file *file, void *f,
return 0;
}
static int saa7134_overlay(struct file *file, void *f, unsigned int on)
static int saa7134_overlay(struct file *file, void *priv, unsigned int on)
{
struct saa7134_fh *fh = f;
struct saa7134_dev *dev = fh->dev;
struct saa7134_dev *dev = video_drvdata(file);
unsigned long flags;
if (on) {
@ -1935,19 +1918,19 @@ static int saa7134_overlay(struct file *file, void *f, unsigned int on)
return -EINVAL;
}
if (!res_get(dev, fh, RESOURCE_OVERLAY))
if (!res_get(dev, priv, RESOURCE_OVERLAY))
return -EBUSY;
spin_lock_irqsave(&dev->slock, flags);
start_preview(dev);
spin_unlock_irqrestore(&dev->slock, flags);
}
if (!on) {
if (!res_check(fh, RESOURCE_OVERLAY))
if (!res_check(priv, RESOURCE_OVERLAY))
return -EINVAL;
spin_lock_irqsave(&dev->slock, flags);
stop_preview(dev);
spin_unlock_irqrestore(&dev->slock, flags);
res_free(dev, fh, RESOURCE_OVERLAY);
res_free(dev, priv, RESOURCE_OVERLAY);
}
return 0;
}
@ -1978,11 +1961,10 @@ static int saa7134_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b)
static int saa7134_streamon(struct file *file, void *priv,
enum v4l2_buf_type type)
{
struct saa7134_fh *fh = priv;
struct saa7134_dev *dev = fh->dev;
struct saa7134_dev *dev = video_drvdata(file);
int res = saa7134_resource(file);
if (!res_get(dev, fh, res))
if (!res_get(dev, priv, res))
return -EBUSY;
/* The SAA7134 has a 1K FIFO; the datasheet suggests that when
@ -2002,9 +1984,8 @@ static int saa7134_streamon(struct file *file, void *priv,
static int saa7134_streamoff(struct file *file, void *priv,
enum v4l2_buf_type type)
{
struct saa7134_dev *dev = video_drvdata(file);
int err;
struct saa7134_fh *fh = priv;
struct saa7134_dev *dev = fh->dev;
int res = saa7134_resource(file);
pm_qos_remove_request(&dev->qos_request);
@ -2012,7 +1993,7 @@ static int saa7134_streamoff(struct file *file, void *priv,
err = videobuf_streamoff(saa7134_queue(file));
if (err < 0)
return err;
res_free(dev, fh, res);
res_free(dev, priv, res);
return 0;
}
@ -2020,8 +2001,7 @@ static int saa7134_streamoff(struct file *file, void *priv,
static int vidioc_g_register (struct file *file, void *priv,
struct v4l2_dbg_register *reg)
{
struct saa7134_fh *fh = priv;
struct saa7134_dev *dev = fh->dev;
struct saa7134_dev *dev = video_drvdata(file);
reg->val = saa_readb(reg->reg & 0xffffff);
reg->size = 1;
@ -2031,8 +2011,7 @@ static int vidioc_g_register (struct file *file, void *priv,
static int vidioc_s_register (struct file *file, void *priv,
const struct v4l2_dbg_register *reg)
{
struct saa7134_fh *fh = priv;
struct saa7134_dev *dev = fh->dev;
struct saa7134_dev *dev = video_drvdata(file);
saa_writeb(reg->reg & 0xffffff, reg->val);
return 0;
@ -2042,8 +2021,7 @@ static int vidioc_s_register (struct file *file, void *priv,
static int radio_g_tuner(struct file *file, void *priv,
struct v4l2_tuner *t)
{
struct saa7134_fh *fh = file->private_data;
struct saa7134_dev *dev = fh->dev;
struct saa7134_dev *dev = video_drvdata(file);
if (0 != t->index)
return -EINVAL;
@ -2062,8 +2040,7 @@ static int radio_g_tuner(struct file *file, void *priv,
static int radio_s_tuner(struct file *file, void *priv,
const struct v4l2_tuner *t)
{
struct saa7134_fh *fh = file->private_data;
struct saa7134_dev *dev = fh->dev;
struct saa7134_dev *dev = video_drvdata(file);
if (0 != t->index)
return -EINVAL;

2
drivers/media/pci/saa7134/saa7134.h
View File

@ -476,7 +476,7 @@ struct saa7134_dmaqueue {
/* video filehandle status */
struct saa7134_fh {
struct v4l2_fh fh;
struct saa7134_dev *dev;
bool is_empress;
unsigned int resources;
};