mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-22 04:03:58 +08:00
[media] cx25821: remove unnecessary global devlist
This device list is not necessary. The kernel already has all that information, so just use that instead. Also remove a bogus refcount and some dead 'private_free' code in the alsa driver. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans Verkuil
Mauro Carvalho Chehab
parent
bfef0d35e5
commit
a8f35ce3d6
@ -59,7 +59,6 @@ do { \
|
||||
Data type declarations - Can be moded to a header file later
|
||||
****************************************************************************/
|
||||
|
||||
static struct snd_card *snd_cx25821_cards[SNDRV_CARDS];
|
||||
static int devno;
|
||||
|
||||
struct cx25821_audio_buffer {
|
||||
@ -626,34 +625,6 @@ static DEFINE_PCI_DEVICE_TABLE(cx25821_audio_pci_tbl) = {
|
||||
|
||||
MODULE_DEVICE_TABLE(pci, cx25821_audio_pci_tbl);
|
||||
|
||||
/*
|
||||
* Not used in the function snd_cx25821_dev_free so removing
|
||||
* from the file.
|
||||
*/
|
||||
/*
|
||||
static int snd_cx25821_free(struct cx25821_audio_dev *chip)
|
||||
{
|
||||
if (chip->irq >= 0)
|
||||
free_irq(chip->irq, chip);
|
||||
|
||||
cx25821_dev_unregister(chip->dev);
|
||||
pci_disable_device(chip->pci);
|
||||
|
||||
return 0;
|
||||
}
|
||||
*/
|
||||
|
||||
/*
|
||||
* Component Destructor
|
||||
*/
|
||||
static void snd_cx25821_dev_free(struct snd_card *card)
|
||||
{
|
||||
struct cx25821_audio_dev *chip = card->private_data;
|
||||
|
||||
/* snd_cx25821_free(chip); */
|
||||
snd_card_free(chip->card);
|
||||
}
|
||||
|
||||
/*
|
||||
* Alsa Constructor - Component probe
|
||||
*/
|
||||
@ -685,7 +656,6 @@ static int cx25821_audio_initdev(struct cx25821_dev *dev)
|
||||
strcpy(card->driver, "cx25821");
|
||||
|
||||
/* Card "creation" */
|
||||
card->private_free = snd_cx25821_dev_free;
|
||||
chip = card->private_data;
|
||||
spin_lock_init(&chip->reg_lock);
|
||||
|
||||
@ -729,8 +699,7 @@ static int cx25821_audio_initdev(struct cx25821_dev *dev)
|
||||
goto error;
|
||||
}
|
||||
|
||||
snd_cx25821_cards[devno] = card;
|
||||
|
||||
dev->card = card;
|
||||
devno++;
|
||||
return 0;
|
||||
|
||||
@ -742,9 +711,31 @@ error:
|
||||
/****************************************************************************
|
||||
LINUX MODULE INIT
|
||||
****************************************************************************/
|
||||
|
||||
static int cx25821_alsa_exit_callback(struct device *dev, void *data)
|
||||
{
|
||||
struct v4l2_device *v4l2_dev = dev_get_drvdata(dev);
|
||||
struct cx25821_dev *cxdev = get_cx25821(v4l2_dev);
|
||||
|
||||
snd_card_free(cxdev->card);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void cx25821_audio_fini(void)
|
||||
{
|
||||
snd_card_free(snd_cx25821_cards[0]);
|
||||
struct device_driver *drv = driver_find("cx25821", &pci_bus_type);
|
||||
int ret;
|
||||
|
||||
ret = driver_for_each_device(drv, NULL, NULL, cx25821_alsa_exit_callback);
|
||||
}
|
||||
|
||||
static int cx25821_alsa_init_callback(struct device *dev, void *data)
|
||||
{
|
||||
struct v4l2_device *v4l2_dev = dev_get_drvdata(dev);
|
||||
struct cx25821_dev *cxdev = get_cx25821(v4l2_dev);
|
||||
|
||||
cx25821_audio_initdev(cxdev);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
@ -756,29 +747,11 @@ static void cx25821_audio_fini(void)
|
||||
*/
|
||||
static int cx25821_alsa_init(void)
|
||||
{
|
||||
struct cx25821_dev *dev = NULL;
|
||||
struct list_head *list;
|
||||
struct device_driver *drv = driver_find("cx25821", &pci_bus_type);
|
||||
|
||||
mutex_lock(&cx25821_devlist_mutex);
|
||||
list_for_each(list, &cx25821_devlist) {
|
||||
dev = list_entry(list, struct cx25821_dev, devlist);
|
||||
cx25821_audio_initdev(dev);
|
||||
}
|
||||
mutex_unlock(&cx25821_devlist_mutex);
|
||||
|
||||
if (dev == NULL)
|
||||
pr_info("ERROR ALSA: no cx25821 cards found\n");
|
||||
|
||||
return 0;
|
||||
return driver_for_each_device(drv, NULL, NULL, cx25821_alsa_init_callback);
|
||||
|
||||
}
|
||||
|
||||
late_initcall(cx25821_alsa_init);
|
||||
module_exit(cx25821_audio_fini);
|
||||
|
||||
/* ----------------------------------------------------------- */
|
||||
/*
|
||||
* Local variables:
|
||||
* c-basic-offset: 8
|
||||
* End:
|
||||
*/
|
||||
|
||||
@ -41,13 +41,6 @@ static unsigned int card[] = {[0 ... (CX25821_MAXBOARDS - 1)] = UNSET };
|
||||
module_param_array(card, int, NULL, 0444);
|
||||
MODULE_PARM_DESC(card, "card type");
|
||||
|
||||
static unsigned int cx25821_devcount;
|
||||
|
||||
DEFINE_MUTEX(cx25821_devlist_mutex);
|
||||
EXPORT_SYMBOL(cx25821_devlist_mutex);
|
||||
LIST_HEAD(cx25821_devlist);
|
||||
EXPORT_SYMBOL(cx25821_devlist);
|
||||
|
||||
const struct sram_channel cx25821_sram_channels[] = {
|
||||
[SRAM_CH00] = {
|
||||
.i = SRAM_CH00,
|
||||
@ -871,6 +864,7 @@ static void cx25821_iounmap(struct cx25821_dev *dev)
|
||||
|
||||
static int cx25821_dev_setup(struct cx25821_dev *dev)
|
||||
{
|
||||
static unsigned int cx25821_devcount;
|
||||
int i;
|
||||
|
||||
pr_info("\n***********************************\n");
|
||||
@ -879,15 +873,9 @@ static int cx25821_dev_setup(struct cx25821_dev *dev)
|
||||
|
||||
mutex_init(&dev->lock);
|
||||
|
||||
atomic_inc(&dev->refcount);
|
||||
|
||||
dev->nr = ++cx25821_devcount;
|
||||
sprintf(dev->name, "cx25821[%d]", dev->nr);
|
||||
|
||||
mutex_lock(&cx25821_devlist_mutex);
|
||||
list_add_tail(&dev->devlist, &cx25821_devlist);
|
||||
mutex_unlock(&cx25821_devlist_mutex);
|
||||
|
||||
if (dev->pci->device != 0x8210) {
|
||||
pr_info("%s(): Exiting. Incorrect Hardware device = 0x%02x\n",
|
||||
__func__, dev->pci->device);
|
||||
@ -1021,9 +1009,6 @@ void cx25821_dev_unregister(struct cx25821_dev *dev)
|
||||
|
||||
release_mem_region(dev->base_io_addr, pci_resource_len(dev->pci, 0));
|
||||
|
||||
if (!atomic_dec_and_test(&dev->refcount))
|
||||
return;
|
||||
|
||||
for (i = 0; i < MAX_VID_CHANNEL_NUM - 1; i++) {
|
||||
if (i == SRAM_CH08) /* audio channel */
|
||||
continue;
|
||||
@ -1414,10 +1399,6 @@ static void cx25821_finidev(struct pci_dev *pci_dev)
|
||||
if (pci_dev->irq)
|
||||
free_irq(pci_dev->irq, dev);
|
||||
|
||||
mutex_lock(&cx25821_devlist_mutex);
|
||||
list_del(&dev->devlist);
|
||||
mutex_unlock(&cx25821_devlist_mutex);
|
||||
|
||||
cx25821_dev_unregister(dev);
|
||||
v4l2_device_unregister(v4l2_dev);
|
||||
kfree(dev);
|
||||
|
||||
@ -654,45 +654,28 @@ static struct videobuf_queue_ops cx25821_video_qops = {
|
||||
static int video_open(struct file *file)
|
||||
{
|
||||
struct video_device *vdev = video_devdata(file);
|
||||
struct cx25821_dev *h, *dev = video_drvdata(file);
|
||||
struct cx25821_dev *dev = video_drvdata(file);
|
||||
struct cx25821_fh *fh;
|
||||
struct list_head *list;
|
||||
int minor = video_devdata(file)->minor;
|
||||
enum v4l2_buf_type type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
||||
u32 pix_format;
|
||||
int ch_id = 0;
|
||||
int i;
|
||||
int ch_id;
|
||||
|
||||
dprintk(1, "open dev=%s type=%s\n", video_device_node_name(vdev),
|
||||
v4l2_type_names[type]);
|
||||
|
||||
for (ch_id = 0; ch_id < MAX_VID_CHANNEL_NUM - 1; ch_id++)
|
||||
if (dev->channels[ch_id].video_dev == vdev)
|
||||
break;
|
||||
|
||||
/* Can't happen */
|
||||
if (ch_id >= MAX_VID_CHANNEL_NUM - 1)
|
||||
return -ENODEV;
|
||||
|
||||
/* allocate + initialize per filehandle data */
|
||||
fh = kzalloc(sizeof(*fh), GFP_KERNEL);
|
||||
if (NULL == fh)
|
||||
return -ENOMEM;
|
||||
|
||||
mutex_lock(&cx25821_devlist_mutex);
|
||||
|
||||
list_for_each(list, &cx25821_devlist)
|
||||
{
|
||||
h = list_entry(list, struct cx25821_dev, devlist);
|
||||
|
||||
for (i = 0; i < MAX_VID_CHANNEL_NUM - 1; i++) {
|
||||
if (h->channels[i].video_dev &&
|
||||
h->channels[i].video_dev->minor == minor) {
|
||||
dev = h;
|
||||
ch_id = i;
|
||||
type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (NULL == dev) {
|
||||
mutex_unlock(&cx25821_devlist_mutex);
|
||||
kfree(fh);
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
file->private_data = fh;
|
||||
fh->dev = dev;
|
||||
fh->type = type;
|
||||
@ -719,7 +702,6 @@ static int video_open(struct file *file)
|
||||
fh, NULL);
|
||||
|
||||
dprintk(1, "post videobuf_queue_init()\n");
|
||||
mutex_unlock(&cx25821_devlist_mutex);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
@ -238,9 +238,9 @@ struct cx25821_channel {
|
||||
int cif_width;
|
||||
};
|
||||
|
||||
struct snd_card;
|
||||
|
||||
struct cx25821_dev {
|
||||
struct list_head devlist;
|
||||
atomic_t refcount;
|
||||
struct v4l2_device v4l2_dev;
|
||||
|
||||
/* pci stuff */
|
||||
@ -252,6 +252,8 @@ struct cx25821_dev {
|
||||
u8 __iomem *bmmio;
|
||||
int pci_irqmask;
|
||||
int hwrevision;
|
||||
/* used by cx25821-alsa */
|
||||
struct snd_card *card;
|
||||
|
||||
u32 clk_freq;
|
||||
|
||||
@ -403,9 +405,6 @@ static inline struct cx25821_dev *get_cx25821(struct v4l2_device *v4l2_dev)
|
||||
#define cx25821_call_all(dev, o, f, args...) \
|
||||
v4l2_device_call_all(&dev->v4l2_dev, 0, o, f, ##args)
|
||||
|
||||
extern struct list_head cx25821_devlist;
|
||||
extern struct mutex cx25821_devlist_mutex;
|
||||
|
||||
extern struct cx25821_board cx25821_boards[];
|
||||
extern struct cx25821_subid cx25821_subids[];
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user