#include <sound/minors.h>
#include <sound/info.h>
#include <linux/sound.h>
+#include <linux/mutex.h>
#define SNDRV_OSS_MINORS 128
static struct snd_minor *snd_oss_minors[SNDRV_OSS_MINORS];
-static DECLARE_MUTEX(sound_oss_mutex);
+static DEFINE_MUTEX(sound_oss_mutex);
void *snd_lookup_oss_minor_data(unsigned int minor, int type)
{
struct snd_minor *mreg;
void *private_data;
- if (minor > ARRAY_SIZE(snd_oss_minors))
+ if (minor >= ARRAY_SIZE(snd_oss_minors))
return NULL;
- down(&sound_oss_mutex);
+ mutex_lock(&sound_oss_mutex);
mreg = snd_oss_minors[minor];
if (mreg && mreg->type == type)
private_data = mreg->private_data;
else
private_data = NULL;
- up(&sound_oss_mutex);
+ mutex_unlock(&sound_oss_mutex);
return private_data;
}
}
int snd_register_oss_device(int type, struct snd_card *card, int dev,
- struct file_operations *f_ops, void *private_data,
+ const struct file_operations *f_ops, void *private_data,
const char *name)
{
int minor = snd_oss_kernel_minor(type, card, dev);
preg->device = dev;
preg->f_ops = f_ops;
preg->private_data = private_data;
- down(&sound_oss_mutex);
+ mutex_lock(&sound_oss_mutex);
snd_oss_minors[minor] = preg;
minor_unit = SNDRV_MINOR_OSS_DEVICE(minor);
switch (minor_unit) {
goto __end;
snd_oss_minors[track2] = preg;
}
- up(&sound_oss_mutex);
+ mutex_unlock(&sound_oss_mutex);
return 0;
__end:
if (register1 >= 0)
unregister_sound_special(register1);
snd_oss_minors[minor] = NULL;
- up(&sound_oss_mutex);
+ mutex_unlock(&sound_oss_mutex);
kfree(preg);
return -EBUSY;
}
return 0;
if (minor < 0)
return minor;
- down(&sound_oss_mutex);
+ mutex_lock(&sound_oss_mutex);
mptr = snd_oss_minors[minor];
if (mptr == NULL) {
- up(&sound_oss_mutex);
+ mutex_unlock(&sound_oss_mutex);
return -ENOENT;
}
unregister_sound_special(minor);
snd_oss_minors[track2] = NULL;
}
snd_oss_minors[minor] = NULL;
- up(&sound_oss_mutex);
+ mutex_unlock(&sound_oss_mutex);
kfree(mptr);
return 0;
}
int minor;
struct snd_minor *mptr;
- down(&sound_oss_mutex);
+ mutex_lock(&sound_oss_mutex);
for (minor = 0; minor < SNDRV_OSS_MINORS; ++minor) {
if (!(mptr = snd_oss_minors[minor]))
continue;
snd_iprintf(buffer, "%3i: : %s\n", minor,
snd_oss_device_type_name(mptr->type));
}
- up(&sound_oss_mutex);
+ mutex_unlock(&sound_oss_mutex);
}
-#endif /* CONFIG_PROC_FS */
int __init snd_minor_info_oss_init(void)
{
-#ifdef CONFIG_PROC_FS
struct snd_info_entry *entry;
entry = snd_info_create_module_entry(THIS_MODULE, "devices", snd_oss_root);
}
}
snd_minor_info_oss_entry = entry;
-#endif
return 0;
}
int __exit snd_minor_info_oss_done(void)
{
-#ifdef CONFIG_PROC_FS
if (snd_minor_info_oss_entry)
snd_info_unregister(snd_minor_info_oss_entry);
-#endif
return 0;
}
+#endif /* CONFIG_PROC_FS */
#endif /* CONFIG_SND_OSSEMUL */