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V4L/DVB (13557): v4l: Remove unneeded video_device::minor usage in drivers
The video_device::minor field is used where it shouldn't, either to - test for error conditions that can't happen anymore with the current v4l-dvb core, - store the value in a driver private field that isn't used anymore, - check the video device type where video_device::vfl_type should be used, or - create the name of a kernel thread that should get a stable name. Remove or fix those use cases. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
parent
46b21094ce
commit
327ae59757
6 changed files with 8 additions and 42 deletions
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@ -1,7 +1,5 @@
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#include <media/saa7146_vv.h>
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#define BOARD_CAN_DO_VBI(dev) (dev->revision != 0 && dev->vv_data->vbi_minor != -1)
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/****************************************************************************/
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/* resource management functions, shamelessly stolen from saa7134 driver */
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@ -455,9 +453,6 @@ int saa7146_vv_init(struct saa7146_dev* dev, struct saa7146_ext_vv *ext_vv)
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configuration data) */
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dev->ext_vv_data = ext_vv;
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vv->video_minor = -1;
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vv->vbi_minor = -1;
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vv->d_clipping.cpu_addr = pci_alloc_consistent(dev->pci, SAA7146_CLIPPING_MEM, &vv->d_clipping.dma_handle);
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if( NULL == vv->d_clipping.cpu_addr ) {
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ERR(("out of memory. aborting.\n"));
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@ -496,7 +491,6 @@ EXPORT_SYMBOL_GPL(saa7146_vv_release);
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int saa7146_register_device(struct video_device **vid, struct saa7146_dev* dev,
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char *name, int type)
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{
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struct saa7146_vv *vv = dev->vv_data;
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struct video_device *vfd;
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int err;
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int i;
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@ -524,11 +518,6 @@ int saa7146_register_device(struct video_device **vid, struct saa7146_dev* dev,
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return err;
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}
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if (VFL_TYPE_GRABBER == type)
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vv->video_minor = vfd->minor;
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else
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vv->vbi_minor = vfd->minor;
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INFO(("%s: registered device %s [v4l2]\n",
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dev->name, video_device_node_name(vfd)));
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@ -539,16 +528,8 @@ EXPORT_SYMBOL_GPL(saa7146_register_device);
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int saa7146_unregister_device(struct video_device **vid, struct saa7146_dev* dev)
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{
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struct saa7146_vv *vv = dev->vv_data;
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DEB_EE(("dev:%p\n",dev));
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if ((*vid)->vfl_type == VFL_TYPE_GRABBER) {
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vv->video_minor = -1;
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} else {
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vv->vbi_minor = -1;
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}
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video_unregister_device(*vid);
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*vid = NULL;
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@ -460,12 +460,8 @@ static int vidioc_s_audio(struct file *file, void *priv,
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static int tea5764_open(struct file *file)
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{
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/* Currently we support only one device */
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int minor = video_devdata(file)->minor;
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struct tea5764_device *radio = video_drvdata(file);
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if (radio->videodev->minor != minor)
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return -ENODEV;
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mutex_lock(&radio->mutex);
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/* Only exclusive access */
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if (radio->users) {
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@ -3206,7 +3206,6 @@ static unsigned int bttv_poll(struct file *file, poll_table *wait)
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static int bttv_open(struct file *file)
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{
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int minor = video_devdata(file)->minor;
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struct video_device *vdev = video_devdata(file);
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struct bttv *btv = video_drvdata(file);
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struct bttv_fh *fh;
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@ -3214,17 +3213,17 @@ static int bttv_open(struct file *file)
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dprintk(KERN_DEBUG "bttv: open dev=%s\n", video_device_node_name(vdev));
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lock_kernel();
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if (btv->video_dev->minor == minor) {
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if (vdev->vfl_type == VFL_TYPE_GRABBER) {
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type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
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} else if (btv->vbi_dev->minor == minor) {
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} else if (vdev->vfl_type == VFL_TYPE_VBI) {
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type = V4L2_BUF_TYPE_VBI_CAPTURE;
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} else {
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WARN_ON(1);
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unlock_kernel();
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return -ENODEV;
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}
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lock_kernel();
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dprintk(KERN_DEBUG "bttv%d: open called (type=%s)\n",
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btv->c.nr,v4l2_type_names[type]);
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@ -3408,7 +3407,6 @@ static struct video_device bttv_video_template = {
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static int radio_open(struct file *file)
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{
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int minor = video_devdata(file)->minor;
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struct video_device *vdev = video_devdata(file);
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struct bttv *btv = video_drvdata(file);
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struct bttv_fh *fh;
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@ -3416,11 +3414,6 @@ static int radio_open(struct file *file)
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dprintk("bttv: open dev=%s\n", video_device_node_name(vdev));
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lock_kernel();
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WARN_ON(btv->radio_dev && btv->radio_dev->minor != minor);
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if (!btv->radio_dev || btv->radio_dev->minor != minor) {
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unlock_kernel();
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return -ENODEV;
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}
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dprintk("bttv%d: open called (radio)\n",btv->c.nr);
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@ -1476,8 +1476,9 @@ static int sn9c20x_input_init(struct gspca_dev *gspca_dev)
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if (input_register_device(sd->input_dev))
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return -EINVAL;
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sd->input_task = kthread_run(input_kthread, gspca_dev, "sn9c20x/%d",
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gspca_dev->vdev.minor);
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sd->input_task = kthread_run(input_kthread, gspca_dev, "sn9c20x/%s-%s",
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gspca_dev->dev->bus->bus_name,
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gspca_dev->dev->devpath);
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if (IS_ERR(sd->input_task))
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return -EINVAL;
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@ -1450,12 +1450,11 @@ static int omap24xxcam_mmap(struct file *file, struct vm_area_struct *vma)
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static int omap24xxcam_open(struct file *file)
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{
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int minor = video_devdata(file)->minor;
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struct omap24xxcam_device *cam = omap24xxcam.priv;
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struct omap24xxcam_fh *fh;
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struct v4l2_format format;
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if (!cam || !cam->vfd || (cam->vfd->minor != minor))
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if (!cam || !cam->vfd)
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return -ENODEV;
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fh = kzalloc(sizeof(*fh), GFP_KERNEL);
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@ -108,8 +108,6 @@ struct saa7146_fh {
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struct saa7146_vv
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{
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int vbi_minor;
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/* vbi capture */
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struct saa7146_dmaqueue vbi_q;
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/* vbi workaround interrupt queue */
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@ -117,8 +115,6 @@ struct saa7146_vv
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int vbi_fieldcount;
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struct saa7146_fh *vbi_streaming;
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int video_minor;
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int video_status;
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struct saa7146_fh *video_fh;
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