struct cx25821_dev *dev = NULL;
struct list_head *list;
+ 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");
MODULE_AUTHOR("Shu Lin - Hiep Huynh");
MODULE_LICENSE("GPL");
-struct list_head cx25821_devlist;
-EXPORT_SYMBOL(cx25821_devlist);
-
static unsigned int debug;
module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "enable debug messages");
static unsigned int cx25821_devcount;
-static DEFINE_MUTEX(devlist);
+DEFINE_MUTEX(cx25821_devlist_mutex);
+EXPORT_SYMBOL(cx25821_devlist_mutex);
LIST_HEAD(cx25821_devlist);
+EXPORT_SYMBOL(cx25821_devlist);
struct sram_channel cx25821_sram_channels[] = {
[SRAM_CH00] = {
dev->nr = ++cx25821_devcount;
sprintf(dev->name, "cx25821[%d]", dev->nr);
- mutex_lock(&devlist);
+ mutex_lock(&cx25821_devlist_mutex);
list_add_tail(&dev->devlist, &cx25821_devlist);
- mutex_unlock(&devlist);
+ mutex_unlock(&cx25821_devlist_mutex);
strcpy(cx25821_boards[UNKNOWN_BOARD].name, "unknown");
strcpy(cx25821_boards[CX25821_BOARD].name, "cx25821");
if (pci_dev->irq)
free_irq(pci_dev->irq, dev);
- mutex_lock(&devlist);
+ mutex_lock(&cx25821_devlist_mutex);
list_del(&dev->devlist);
- mutex_unlock(&devlist);
+ mutex_unlock(&cx25821_devlist_mutex);
cx25821_dev_unregister(dev);
v4l2_device_unregister(v4l2_dev);
static int __init cx25821_init(void)
{
- INIT_LIST_HEAD(&cx25821_devlist);
pr_info("driver version %d.%d.%d loaded\n",
(CX25821_VERSION_CODE >> 16) & 0xff,
(CX25821_VERSION_CODE >> 8) & 0xff,
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include "cx25821-video.h"
-#include <linux/smp_lock.h>
MODULE_DESCRIPTION("v4l2 driver module for cx25821 based TV cards");
MODULE_AUTHOR("Hiep Huynh <hiep.huynh@conexant.com>");
if (NULL == fh)
return -ENOMEM;
- lock_kernel();
+ mutex_lock(&cx25821_devlist_mutex);
list_for_each(list, &cx25821_devlist)
{
}
if (NULL == dev) {
- unlock_kernel();
- return -ENODEV;
+ mutex_unlock(&cx25821_devlist_mutex);
+ return -ENODEV;
}
file->private_data = fh;
sizeof(struct cx25821_buffer), fh, NULL);
dprintk(1, "post videobuf_queue_init()\n");
- unlock_kernel();
+ mutex_unlock(&cx25821_devlist_mutex);
return 0;
}
#include <linux/delay.h>
#include <linux/sched.h>
#include <linux/kdev_t.h>
-#include <linux/smp_lock.h>
#include <media/v4l2-common.h>
#include <media/v4l2-device.h>
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[];