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media: dvbdev: fix most coding style issues
As we're doing several changes here, address coding style issues, as reported by checkpatch.pl. Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
This commit is contained in:
Mauro Carvalho Chehab
parent
280a8ab817
commit
f28701cc24
@ -61,21 +61,21 @@ static const char * const dnames[] = {
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#define DVB_MAX_IDS 4
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static const u8 minor_type[] = {
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[DVB_DEVICE_VIDEO] = 0,
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[DVB_DEVICE_AUDIO] = 1,
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[DVB_DEVICE_SEC] = 2,
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[DVB_DEVICE_FRONTEND] = 3,
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[DVB_DEVICE_DEMUX] = 4,
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[DVB_DEVICE_DVR] = 5,
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[DVB_DEVICE_CA] = 6,
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[DVB_DEVICE_NET] = 7,
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[DVB_DEVICE_OSD] = 8,
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[DVB_DEVICE_VIDEO] = 0,
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[DVB_DEVICE_AUDIO] = 1,
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[DVB_DEVICE_SEC] = 2,
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[DVB_DEVICE_FRONTEND] = 3,
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[DVB_DEVICE_DEMUX] = 4,
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[DVB_DEVICE_DVR] = 5,
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[DVB_DEVICE_CA] = 6,
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[DVB_DEVICE_NET] = 7,
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[DVB_DEVICE_OSD] = 8,
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};
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#define nums2minor(num, type, id) \
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(((num) << 6) | ((id) << 4) | minor_type[type])
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(((num) << 6) | ((id) << 4) | minor_type[type])
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#define MAX_DVB_MINORS (DVB_MAX_ADAPTERS*64)
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#define MAX_DVB_MINORS (DVB_MAX_ADAPTERS * 64)
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#endif
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static struct class *dvb_class;
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@ -112,9 +112,7 @@ fail:
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return -ENODEV;
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}
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static const struct file_operations dvb_device_fops =
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{
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static const struct file_operations dvb_device_fops = {
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.owner = THIS_MODULE,
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.open = dvb_device_open,
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.llseek = noop_llseek,
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@ -147,7 +145,6 @@ int dvb_generic_open(struct inode *inode, struct file *file)
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}
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EXPORT_SYMBOL(dvb_generic_open);
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int dvb_generic_release(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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@ -155,11 +152,10 @@ int dvb_generic_release(struct inode *inode, struct file *file)
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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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if ((file->f_flags & O_ACCMODE) == O_RDONLY)
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dvbdev->readers++;
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} else {
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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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@ -169,7 +165,6 @@ int dvb_generic_release(struct inode *inode, struct file *file)
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}
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EXPORT_SYMBOL(dvb_generic_release);
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long dvb_generic_ioctl(struct file *file,
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unsigned int cmd, unsigned long arg)
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{
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@ -185,13 +180,13 @@ long dvb_generic_ioctl(struct file *file,
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}
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EXPORT_SYMBOL(dvb_generic_ioctl);
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static int dvbdev_get_free_id (struct dvb_adapter *adap, int type)
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static int dvbdev_get_free_id(struct dvb_adapter *adap, int type)
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{
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u32 id = 0;
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while (id < DVB_MAX_IDS) {
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struct dvb_device *dev;
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list_for_each_entry(dev, &adap->device_list, list_head)
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if (dev->type == type && dev->id == id)
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goto skip;
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@ -245,7 +240,7 @@ static void dvb_media_device_free(struct dvb_device *dvbdev)
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#if defined(CONFIG_MEDIA_CONTROLLER_DVB)
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static int dvb_create_tsout_entity(struct dvb_device *dvbdev,
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const char *name, int npads)
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const char *name, int npads)
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{
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int i;
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@ -387,7 +382,7 @@ static int dvb_create_media_entity(struct dvb_device *dvbdev,
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static int dvb_register_media_device(struct dvb_device *dvbdev,
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int type, int minor,
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unsigned demux_sink_pads)
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unsigned int demux_sink_pads)
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{
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#if defined(CONFIG_MEDIA_CONTROLLER_DVB)
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struct media_link *link;
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@ -462,7 +457,8 @@ int dvb_register_device(struct dvb_adapter *adap, struct dvb_device **pdvbdev,
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mutex_lock(&dvbdev_register_lock);
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if ((id = dvbdev_get_free_id (adap, type)) < 0) {
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id = dvbdev_get_free_id(adap, type);
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if (id < 0) {
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mutex_unlock(&dvbdev_register_lock);
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*pdvbdev = NULL;
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pr_err("%s: couldn't find free device id\n", __func__);
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@ -470,7 +466,7 @@ int dvb_register_device(struct dvb_adapter *adap, struct dvb_device **pdvbdev,
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}
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*pdvbdev = dvbdev = kzalloc(sizeof(*dvbdev), GFP_KERNEL);
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if (!dvbdev){
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if (!dvbdev) {
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mutex_unlock(&dvbdev_register_lock);
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return -ENOMEM;
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}
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@ -482,14 +478,13 @@ int dvb_register_device(struct dvb_adapter *adap, struct dvb_device **pdvbdev,
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*/
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list_for_each_entry(node, &dvbdevfops_list, list_head) {
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if (node->fops->owner == adap->module &&
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node->type == type &&
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node->template == template) {
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node->type == type && node->template == template) {
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dvbdevfops = node->fops;
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break;
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}
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}
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if (dvbdevfops == NULL) {
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if (!dvbdevfops) {
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dvbdevfops = kmemdup(template->fops, sizeof(*dvbdevfops), GFP_KERNEL);
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if (!dvbdevfops) {
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kfree(dvbdev);
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@ -497,7 +492,7 @@ int dvb_register_device(struct dvb_adapter *adap, struct dvb_device **pdvbdev,
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return -ENOMEM;
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}
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new_node = kzalloc(sizeof(struct dvbdevfops_node), GFP_KERNEL);
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new_node = kzalloc(sizeof(*new_node), GFP_KERNEL);
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if (!new_node) {
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kfree(dvbdevfops);
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kfree(dvbdev);
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@ -508,7 +503,7 @@ int dvb_register_device(struct dvb_adapter *adap, struct dvb_device **pdvbdev,
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new_node->fops = dvbdevfops;
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new_node->type = type;
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new_node->template = template;
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list_add_tail (&new_node->list_head, &dvbdevfops_list);
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list_add_tail(&new_node->list_head, &dvbdevfops_list);
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}
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memcpy(dvbdev, template, sizeof(struct dvb_device));
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@ -518,21 +513,21 @@ int dvb_register_device(struct dvb_adapter *adap, struct dvb_device **pdvbdev,
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dvbdev->adapter = adap;
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dvbdev->priv = priv;
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dvbdev->fops = dvbdevfops;
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init_waitqueue_head (&dvbdev->wait_queue);
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init_waitqueue_head(&dvbdev->wait_queue);
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dvbdevfops->owner = adap->module;
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list_add_tail (&dvbdev->list_head, &adap->device_list);
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list_add_tail(&dvbdev->list_head, &adap->device_list);
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down_write(&minor_rwsem);
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#ifdef CONFIG_DVB_DYNAMIC_MINORS
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for (minor = 0; minor < MAX_DVB_MINORS; minor++)
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if (dvb_minors[minor] == NULL)
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if (!dvb_minors[minor])
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break;
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if (minor == MAX_DVB_MINORS) {
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if (new_node) {
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list_del (&new_node->list_head);
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list_del(&new_node->list_head);
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kfree(dvbdevfops);
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kfree(new_node);
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}
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list_del (&dvbdev->list_head);
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list_del(&dvbdev->list_head);
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kfree(dvbdev);
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up_write(&minor_rwsem);
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mutex_unlock(&dvbdev_register_lock);
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@ -547,14 +542,14 @@ int dvb_register_device(struct dvb_adapter *adap, struct dvb_device **pdvbdev,
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ret = dvb_register_media_device(dvbdev, type, minor, demux_sink_pads);
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if (ret) {
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pr_err("%s: dvb_register_media_device failed to create the mediagraph\n",
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__func__);
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__func__);
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if (new_node) {
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list_del (&new_node->list_head);
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list_del(&new_node->list_head);
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kfree(dvbdevfops);
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kfree(new_node);
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}
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dvb_media_device_free(dvbdev);
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list_del (&dvbdev->list_head);
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list_del(&dvbdev->list_head);
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kfree(dvbdev);
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mutex_unlock(&dvbdev_register_lock);
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return ret;
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@ -567,12 +562,12 @@ int dvb_register_device(struct dvb_adapter *adap, struct dvb_device **pdvbdev,
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pr_err("%s: failed to create device dvb%d.%s%d (%ld)\n",
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__func__, adap->num, dnames[type], id, PTR_ERR(clsdev));
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if (new_node) {
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list_del (&new_node->list_head);
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list_del(&new_node->list_head);
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kfree(dvbdevfops);
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kfree(new_node);
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}
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dvb_media_device_free(dvbdev);
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list_del (&dvbdev->list_head);
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list_del(&dvbdev->list_head);
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kfree(dvbdev);
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mutex_unlock(&dvbdev_register_lock);
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return PTR_ERR(clsdev);
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@ -586,7 +581,6 @@ int dvb_register_device(struct dvb_adapter *adap, struct dvb_device **pdvbdev,
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}
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EXPORT_SYMBOL(dvb_register_device);
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void dvb_remove_device(struct dvb_device *dvbdev)
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{
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if (!dvbdev)
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@ -601,19 +595,17 @@ void dvb_remove_device(struct dvb_device *dvbdev)
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device_destroy(dvb_class, MKDEV(DVB_MAJOR, dvbdev->minor));
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list_del (&dvbdev->list_head);
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list_del(&dvbdev->list_head);
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}
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EXPORT_SYMBOL(dvb_remove_device);
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static void dvb_free_device(struct kref *ref)
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{
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struct dvb_device *dvbdev = container_of(ref, struct dvb_device, ref);
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kfree (dvbdev);
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kfree(dvbdev);
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}
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struct dvb_device *dvb_device_get(struct dvb_device *dvbdev)
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{
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kref_get(&dvbdev->ref);
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@ -621,14 +613,12 @@ struct dvb_device *dvb_device_get(struct dvb_device *dvbdev)
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}
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EXPORT_SYMBOL(dvb_device_get);
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void dvb_device_put(struct dvb_device *dvbdev)
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{
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if (dvbdev)
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kref_put(&dvbdev->ref, dvb_free_device);
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}
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void dvb_unregister_device(struct dvb_device *dvbdev)
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{
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dvb_remove_device(dvbdev);
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@ -636,7 +626,6 @@ void dvb_unregister_device(struct dvb_device *dvbdev)
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}
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EXPORT_SYMBOL(dvb_unregister_device);
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#ifdef CONFIG_MEDIA_CONTROLLER_DVB
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static int dvb_create_io_intf_links(struct dvb_adapter *adap,
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@ -669,9 +658,9 @@ int dvb_create_media_graph(struct dvb_adapter *adap,
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struct media_entity *demux = NULL, *ca = NULL;
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struct media_link *link;
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struct media_interface *intf;
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unsigned demux_pad = 0;
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unsigned dvr_pad = 0;
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unsigned ntuner = 0, ndemod = 0;
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unsigned int demux_pad = 0;
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unsigned int dvr_pad = 0;
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unsigned int ntuner = 0, ndemod = 0;
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int ret, pad_source, pad_sink;
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static const char *connector_name = "Television";
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@ -795,18 +784,18 @@ int dvb_create_media_graph(struct dvb_adapter *adap,
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media_device_for_each_entity(entity, mdev) {
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if (entity->function == MEDIA_ENT_F_IO_DTV) {
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if (!strncmp(entity->name, DVR_TSOUT,
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strlen(DVR_TSOUT))) {
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strlen(DVR_TSOUT))) {
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ret = media_create_pad_link(demux,
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++dvr_pad,
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entity, 0, 0);
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++dvr_pad,
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entity, 0, 0);
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if (ret)
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return ret;
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}
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if (!strncmp(entity->name, DEMUX_TSOUT,
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strlen(DEMUX_TSOUT))) {
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strlen(DEMUX_TSOUT))) {
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ret = media_create_pad_link(demux,
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++demux_pad,
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entity, 0, 0);
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++demux_pad,
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entity, 0, 0);
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if (ret)
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return ret;
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}
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@ -864,8 +853,10 @@ EXPORT_SYMBOL_GPL(dvb_create_media_graph);
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static int dvbdev_check_free_adapter_num(int num)
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{
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struct list_head *entry;
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list_for_each(entry, &dvb_adapter_list) {
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struct dvb_adapter *adap;
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adap = list_entry(entry, struct dvb_adapter, list_head);
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if (adap->num == num)
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return 0;
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@ -873,7 +864,7 @@ static int dvbdev_check_free_adapter_num(int num)
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return 1;
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}
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static int dvbdev_get_free_adapter_num (void)
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static int dvbdev_get_free_adapter_num(void)
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{
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int num = 0;
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@ -886,7 +877,6 @@ static int dvbdev_get_free_adapter_num (void)
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return -ENFILE;
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}
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int dvb_register_adapter(struct dvb_adapter *adap, const char *name,
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struct module *module, struct device *device,
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short *adapter_nums)
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@ -913,8 +903,8 @@ int dvb_register_adapter(struct dvb_adapter *adap, const char *name,
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return -ENFILE;
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}
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memset (adap, 0, sizeof(struct dvb_adapter));
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INIT_LIST_HEAD (&adap->device_list);
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memset(adap, 0, sizeof(struct dvb_adapter));
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INIT_LIST_HEAD(&adap->device_list);
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pr_info("DVB: registering new adapter (%s)\n", name);
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@ -924,13 +914,13 @@ int dvb_register_adapter(struct dvb_adapter *adap, const char *name,
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adap->device = device;
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adap->mfe_shared = 0;
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adap->mfe_dvbdev = NULL;
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mutex_init (&adap->mfe_lock);
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mutex_init(&adap->mfe_lock);
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#ifdef CONFIG_MEDIA_CONTROLLER_DVB
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mutex_init(&adap->mdev_lock);
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#endif
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list_add_tail (&adap->list_head, &dvb_adapter_list);
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list_add_tail(&adap->list_head, &dvb_adapter_list);
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mutex_unlock(&dvbdev_register_lock);
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@ -938,25 +928,26 @@ int dvb_register_adapter(struct dvb_adapter *adap, const char *name,
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}
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EXPORT_SYMBOL(dvb_register_adapter);
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int dvb_unregister_adapter(struct dvb_adapter *adap)
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{
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mutex_lock(&dvbdev_register_lock);
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list_del (&adap->list_head);
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list_del(&adap->list_head);
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mutex_unlock(&dvbdev_register_lock);
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return 0;
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}
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EXPORT_SYMBOL(dvb_unregister_adapter);
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/* if the miracle happens and "generic_usercopy()" is included into
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the kernel, then this can vanish. please don't make the mistake and
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define this as video_usercopy(). this will introduce a dependency
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to the v4l "videodev.o" module, which is unnecessary for some
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cards (ie. the budget dvb-cards don't need the v4l module...) */
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/*
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* if the miracle happens and "generic_usercopy()" is included into
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* the kernel, then this can vanish. please don't make the mistake and
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* define this as video_usercopy(). this will introduce a dependency
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* to the v4l "videodev.o" module, which is unnecessary for some
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* cards (ie. the budget dvb-cards don't need the v4l module...)
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*/
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int dvb_usercopy(struct file *file,
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unsigned int cmd, unsigned long arg,
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int (*func)(struct file *file,
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unsigned int cmd, void *arg))
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unsigned int cmd, unsigned long arg,
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int (*func)(struct file *file,
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unsigned int cmd, void *arg))
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{
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char sbuf[128];
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void *mbuf = NULL;
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@ -970,7 +961,7 @@ int dvb_usercopy(struct file *file,
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* For this command, the pointer is actually an integer
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* argument.
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*/
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parg = (void *) arg;
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parg = (void *)arg;
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break;
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case _IOC_READ: /* some v4l ioctls are marked wrong ... */
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case _IOC_WRITE:
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@ -980,7 +971,7 @@ int dvb_usercopy(struct file *file,
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} else {
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/* too big to allocate from stack */
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mbuf = kmalloc(_IOC_SIZE(cmd), GFP_KERNEL);
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if (NULL == mbuf)
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if (!mbuf)
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return -ENOMEM;
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parg = mbuf;
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}
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@ -992,15 +983,15 @@ int dvb_usercopy(struct file *file,
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}
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/* call driver */
|
||||
if ((err = func(file, cmd, parg)) == -ENOIOCTLCMD)
|
||||
err = func(file, cmd, parg);
|
||||
if (err == -ENOIOCTLCMD)
|
||||
err = -ENOTTY;
|
||||
|
||||
if (err < 0)
|
||||
goto out;
|
||||
|
||||
/* Copy results into user buffer */
|
||||
switch (_IOC_DIR(cmd))
|
||||
{
|
||||
switch (_IOC_DIR(cmd)) {
|
||||
case _IOC_READ:
|
||||
case (_IOC_WRITE | _IOC_READ):
|
||||
if (copy_to_user((void __user *)arg, parg, _IOC_SIZE(cmd)))
|
||||
@ -1080,19 +1071,20 @@ static char *dvb_devnode(const struct device *dev, umode_t *mode)
|
||||
dvbdev->adapter->num, dnames[dvbdev->type], dvbdev->id);
|
||||
}
|
||||
|
||||
|
||||
static int __init init_dvbdev(void)
|
||||
{
|
||||
int retval;
|
||||
dev_t dev = MKDEV(DVB_MAJOR, 0);
|
||||
|
||||
if ((retval = register_chrdev_region(dev, MAX_DVB_MINORS, "DVB")) != 0) {
|
||||
retval = register_chrdev_region(dev, MAX_DVB_MINORS, "DVB");
|
||||
if (retval != 0) {
|
||||
pr_err("dvb-core: unable to get major %d\n", DVB_MAJOR);
|
||||
return retval;
|
||||
}
|
||||
|
||||
cdev_init(&dvb_device_cdev, &dvb_device_fops);
|
||||
if ((retval = cdev_add(&dvb_device_cdev, dev, MAX_DVB_MINORS)) != 0) {
|
||||
retval = cdev_add(&dvb_device_cdev, dev, MAX_DVB_MINORS);
|
||||
if (retval != 0) {
|
||||
pr_err("dvb-core: unable register character device\n");
|
||||
goto error;
|
||||
}
|
||||
@ -1112,7 +1104,6 @@ error:
|
||||
return retval;
|
||||
}
|
||||
|
||||
|
||||
static void __exit exit_dvbdev(void)
|
||||
{
|
||||
struct dvbdevfops_node *node, *next;
|
||||
@ -1122,7 +1113,7 @@ static void __exit exit_dvbdev(void)
|
||||
unregister_chrdev_region(MKDEV(DVB_MAJOR, 0), MAX_DVB_MINORS);
|
||||
|
||||
list_for_each_entry_safe(node, next, &dvbdevfops_list, list_head) {
|
||||
list_del (&node->list_head);
|
||||
list_del(&node->list_head);
|
||||
kfree(node->fops);
|
||||
kfree(node);
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user