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V4L/DVB (5512): Fix 3/3 for bug 7819: fixed hotplugging for dvbnet
fixed hotplugging for dvbnet Signed-off-by: Michal CIJOML Semler <cijoml@volny.cz> Signed-off-by: Markus Rechberger <markus.rechberger@amd.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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57861b432b
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4 changed files with 32 additions and 4 deletions
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@ -1208,8 +1208,6 @@ int dvb_dmx_init(struct dvb_demux *dvbdemux)
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dmx->disconnect_frontend = dvbdmx_disconnect_frontend;
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dmx->get_pes_pids = dvbdmx_get_pes_pids;
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init_waitqueue_head (&dvbdemux->wait_queue);
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mutex_init(&dvbdemux->mutex);
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spin_lock_init(&dvbdemux->lock);
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@ -119,7 +119,6 @@ struct dvb_demux {
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u16 pids[DMX_TS_PES_OTHER];
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int playing;
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int recording;
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wait_queue_head_t wait_queue;
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#define DMX_MAX_PID 0x2000
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struct list_head feed_list;
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@ -1439,11 +1439,36 @@ static int dvb_net_ioctl(struct inode *inode, struct file *file,
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return dvb_usercopy(inode, file, cmd, arg, dvb_net_do_ioctl);
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}
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static int dvb_net_close(struct inode *inode, struct file *file)
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{
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struct dvb_device *dvbdev = file->private_data;
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struct dvb_net *dvbnet = dvbdev->priv;
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if (!dvbdev)
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return -ENODEV;
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if ((file->f_flags & O_ACCMODE) == O_RDONLY) {
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dvbdev->readers++;
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} else {
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dvbdev->writers++;
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}
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dvbdev->users++;
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if(dvbdev->users == 1 && dvbnet->exit==1) {
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fops_put(file->f_op);
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file->f_op = NULL;
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wake_up(&dvbdev->wait_queue);
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}
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return 0;
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}
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static struct file_operations dvb_net_fops = {
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.owner = THIS_MODULE,
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.ioctl = dvb_net_ioctl,
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.open = dvb_generic_open,
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.release = dvb_generic_release,
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.release = dvb_net_close,
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};
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static struct dvb_device dvbdev_net = {
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@ -1458,6 +1483,11 @@ void dvb_net_release (struct dvb_net *dvbnet)
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{
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int i;
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dvbnet->exit = 1;
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if (dvbnet->dvbdev->users < 1)
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wait_event(dvbnet->dvbdev->wait_queue,
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dvbnet->dvbdev->users==1);
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dvb_unregister_device(dvbnet->dvbdev);
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for (i=0; i<DVB_NET_DEVICES_MAX; i++) {
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@ -36,6 +36,7 @@ struct dvb_net {
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struct dvb_device *dvbdev;
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struct net_device *device[DVB_NET_DEVICES_MAX];
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int state[DVB_NET_DEVICES_MAX];
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unsigned int exit:1;
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struct dmx_demux *demux;
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};
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