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Diffstat (limited to 'sound/oss/soundcard.c')
-rw-r--r--sound/oss/soundcard.c76
1 files changed, 27 insertions, 49 deletions
diff --git a/sound/oss/soundcard.c b/sound/oss/soundcard.c
index 46c0d03dbec..b70c7c8f9c5 100644
--- a/sound/oss/soundcard.c
+++ b/sound/oss/soundcard.c
@@ -87,7 +87,7 @@ int *load_mixer_volumes(char *name, int *levels, int present)
int i, n;
for (i = 0; i < num_mixer_volumes; i++) {
- if (strcmp(name, mixer_vols[i].name) == 0) {
+ if (strncmp(name, mixer_vols[i].name, 32) == 0) {
if (present)
mixer_vols[i].num = i;
return mixer_vols[i].levels;
@@ -99,7 +99,7 @@ int *load_mixer_volumes(char *name, int *levels, int present)
}
n = num_mixer_volumes++;
- strcpy(mixer_vols[n].name, name);
+ strncpy(mixer_vols[n].name, name, 32);
if (present)
mixer_vols[n].num = n;
@@ -143,7 +143,7 @@ static int get_mixer_levels(void __user * arg)
static ssize_t sound_read(struct file *file, char __user *buf, size_t count, loff_t *ppos)
{
- int dev = iminor(file->f_path.dentry->d_inode);
+ int dev = iminor(file_inode(file));
int ret = -EINVAL;
/*
@@ -154,7 +154,6 @@ static ssize_t sound_read(struct file *file, char __user *buf, size_t count, lof
mutex_lock(&soundcard_mutex);
- DEB(printk("sound_read(dev=%d, count=%d)\n", dev, count));
switch (dev & 0x0f) {
case SND_DEV_DSP:
case SND_DEV_DSP16:
@@ -176,11 +175,10 @@ static ssize_t sound_read(struct file *file, char __user *buf, size_t count, lof
static ssize_t sound_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos)
{
- int dev = iminor(file->f_path.dentry->d_inode);
+ int dev = iminor(file_inode(file));
int ret = -EINVAL;
mutex_lock(&soundcard_mutex);
- DEB(printk("sound_write(dev=%d, count=%d)\n", dev, count));
switch (dev & 0x0f) {
case SND_DEV_SEQ:
case SND_DEV_SEQ2:
@@ -206,7 +204,6 @@ static int sound_open(struct inode *inode, struct file *file)
int dev = iminor(inode);
int retval;
- DEB(printk("sound_open(dev=%d)\n", dev));
if ((dev >= SND_NDEVS) || (dev < 0)) {
printk(KERN_ERR "Invalid minor device %d\n", dev);
return -ENXIO;
@@ -257,7 +254,6 @@ static int sound_release(struct inode *inode, struct file *file)
int dev = iminor(inode);
mutex_lock(&soundcard_mutex);
- DEB(printk("sound_release(dev=%d)\n", dev));
switch (dev & 0x0f) {
case SND_DEV_CTL:
module_put(mixer_devs[dev >> 4]->owner);
@@ -333,7 +329,7 @@ static int sound_mixer_ioctl(int mixdev, unsigned int cmd, void __user *arg)
static long sound_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
int len = 0, dtype;
- int dev = iminor(file->f_dentry->d_inode);
+ int dev = iminor(file_inode(file));
long ret = -EINVAL;
void __user *p = (void __user *)arg;
@@ -351,7 +347,6 @@ static long sound_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
if (!access_ok(VERIFY_WRITE, p, len))
return -EFAULT;
}
- DEB(printk("sound_ioctl(dev=%d, cmd=0x%x, arg=0x%x)\n", dev, cmd, arg));
if (cmd == OSS_GETVERSION)
return __put_user(SOUND_VERSION, (int __user *)p);
@@ -406,10 +401,9 @@ static long sound_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
static unsigned int sound_poll(struct file *file, poll_table * wait)
{
- struct inode *inode = file->f_path.dentry->d_inode;
+ struct inode *inode = file_inode(file);
int dev = iminor(inode);
- DEB(printk("sound_poll(dev=%d)\n", dev));
switch (dev & 0x0f) {
case SND_DEV_SEQ:
case SND_DEV_SEQ2:
@@ -431,7 +425,7 @@ static int sound_mmap(struct file *file, struct vm_area_struct *vma)
int dev_class;
unsigned long size;
struct dma_buffparms *dmap = NULL;
- int dev = iminor(file->f_path.dentry->d_inode);
+ int dev = iminor(file_inode(file));
dev_class = dev & 0x0f;
dev >>= 4;
@@ -526,31 +520,21 @@ bad:
}
-/* These device names follow the official Linux device list,
- * Documentation/devices.txt. Let us know if there are other
- * common names we should support for compatibility.
- * Only those devices not created by the generic code in sound_core.c are
- * registered here.
- */
-static const struct {
- unsigned short minor;
- char *name;
- umode_t mode;
- int *num;
-} dev_list[] = { /* list of minor devices */
-/* seems to be some confusion here -- this device is not in the device list */
- {SND_DEV_DSP16, "dspW", S_IWUGO | S_IRUSR | S_IRGRP,
- &num_audiodevs},
- {SND_DEV_AUDIO, "audio", S_IWUGO | S_IRUSR | S_IRGRP,
- &num_audiodevs},
-};
-
static int dmabuf;
static int dmabug;
module_param(dmabuf, int, 0444);
module_param(dmabug, int, 0444);
+/* additional minors for compatibility */
+struct oss_minor_dev {
+ unsigned short minor;
+ unsigned int enabled;
+} dev_list[] = {
+ { SND_DEV_DSP16 },
+ { SND_DEV_AUDIO },
+};
+
static int __init oss_init(void)
{
int err;
@@ -571,18 +555,12 @@ static int __init oss_init(void)
sound_dmap_flag = (dmabuf > 0 ? 1 : 0);
for (i = 0; i < ARRAY_SIZE(dev_list); i++) {
- device_create(sound_class, NULL,
- MKDEV(SOUND_MAJOR, dev_list[i].minor), NULL,
- "%s", dev_list[i].name);
-
- if (!dev_list[i].num)
- continue;
-
- for (j = 1; j < *dev_list[i].num; j++)
- device_create(sound_class, NULL,
- MKDEV(SOUND_MAJOR,
- dev_list[i].minor + (j*0x10)),
- NULL, "%s%d", dev_list[i].name, j);
+ j = 0;
+ do {
+ unsigned short minor = dev_list[i].minor + j * 0x10;
+ if (!register_sound_special(&oss_sound_fops, minor))
+ dev_list[i].enabled = (1 << j);
+ } while (++j < num_audiodevs);
}
if (sound_nblocks >= MAX_MEM_BLOCKS - 1)
@@ -596,11 +574,11 @@ static void __exit oss_cleanup(void)
int i, j;
for (i = 0; i < ARRAY_SIZE(dev_list); i++) {
- device_destroy(sound_class, MKDEV(SOUND_MAJOR, dev_list[i].minor));
- if (!dev_list[i].num)
- continue;
- for (j = 1; j < *dev_list[i].num; j++)
- device_destroy(sound_class, MKDEV(SOUND_MAJOR, dev_list[i].minor + (j*0x10)));
+ j = 0;
+ do {
+ if (dev_list[i].enabled & (1 << j))
+ unregister_sound_special(dev_list[i].minor);
+ } while (++j < num_audiodevs);
}
unregister_sound_special(1);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-06 19:37:58 +0000