sound/sounc_core.c has a larger number of style issues. Fix them to make the code more readable. No functional change.
Signed-off-by: Daniel Mack zonque@gmail.com --- sound/sound_core.c | 192 ++++++++++++++++++++++++----------------------------- 1 file changed, 85 insertions(+), 107 deletions(-)
diff --git a/sound/sound_core.c b/sound/sound_core.c index 11e953a..bf9e41e 100644 --- a/sound/sound_core.c +++ b/sound/sound_core.c @@ -68,21 +68,16 @@ module_exit(cleanup_soundcore); #ifdef CONFIG_SOUND_OSS_CORE /* * OSS sound core handling. Breaks out sound functions to submodules - * - * Author: Alan Cox alan@lxorguk.ukuu.org.uk - * - * Fixes: * + * Author: Alan Cox alan@lxorguk.ukuu.org.uk * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version * 2 of the License, or (at your option) any later version. * - * -------------------- - * * Top level handler for the sound subsystem. Various devices can - * plug into this. The fact they don't all go via OSS doesn't mean + * plug into this. The fact they don't all go via OSS doesn't mean * they don't have to implement the OSS API. There is a lot of logic * to keeping much of the OSS weight out of the code in a compatibility * module, but it's up to the driver to rember to load it... @@ -111,8 +106,7 @@ module_exit(cleanup_soundcore);
#define SOUND_STEP 16
-struct sound_unit -{ +struct sound_unit { int unit_minor; const struct file_operations *unit_fops; struct sound_unit *next; @@ -158,8 +152,7 @@ module_param(preclaim_oss, int, 0444);
static int soundcore_open(struct inode *, struct file *);
-static const struct file_operations soundcore_fops = -{ +static const struct file_operations soundcore_fops = { /* We must have an owner or the module locking fails */ .owner = THIS_MODULE, .open = soundcore_open, @@ -171,71 +164,66 @@ static const struct file_operations soundcore_fops = * join into it. Called with the lock asserted */
-static int __sound_insert_unit(struct sound_unit * s, struct sound_unit **list, const struct file_operations *fops, int index, int low, int top) +static int __sound_insert_unit(struct sound_unit *s, struct sound_unit **list, + const struct file_operations *fops, + int index, int low, int top) { - int n=low; + int n = low;
if (index < 0) { /* first free */ + while (*list && (*list)->unit_minor < n) + list = &((*list)->next);
- while (*list && (*list)->unit_minor<n) - list=&((*list)->next); - - while(n<top) - { + while (n < top) { /* Found a hole ? */ - if(*list==NULL || (*list)->unit_minor>n) + if (*list == NULL || (*list)->unit_minor > n) break; - list=&((*list)->next); - n+=SOUND_STEP; + + list = &((*list)->next); + n += SOUND_STEP; }
- if(n>=top) + if (n >= top) return -ENOENT; } else { - n = low+(index*16); + n = low + (index * 16); while (*list) { - if ((*list)->unit_minor==n) + if ((*list)->unit_minor == n) return -EBUSY; - if ((*list)->unit_minor>n) + if ((*list)->unit_minor > n) break; - list=&((*list)->next); + list = &((*list)->next); } - } - - /* - * Fill it in - */ - - s->unit_minor=n; - s->unit_fops=fops; - - /* - * Link it - */ - - s->next=*list; - *list=s; - - + } + + /* Fill it in */ + s->unit_minor = n; + s->unit_fops = fops; + + /* Link it */ + s->next = *list; + *list = s; + return n; }
/* * Remove a node from the chain. Called with the lock asserted */ - -static struct sound_unit *__sound_remove_unit(struct sound_unit **list, int unit) +static struct sound_unit *__sound_remove_unit(struct sound_unit **list, + int unit) { - while(*list) - { - struct sound_unit *p=*list; - if(p->unit_minor==unit) - { - *list=p->next; + while (*list) { + struct sound_unit *p = *list; + + if (p->unit_minor == unit) { + *list = p->next; return p; } - list=&(p->next); + + list = &p->next; } + printk(KERN_ERR "Sound device %d went missing!\n", unit); return NULL; } @@ -250,12 +238,15 @@ static DEFINE_SPINLOCK(sound_loader_lock); * Allocate the controlling structure and add it to the sound driver * list. Acquires locks as needed */ - -static int sound_insert_unit(struct sound_unit **list, const struct file_operations *fops, int index, int low, int top, const char *name, umode_t mode, struct device *dev) +static int sound_insert_unit(struct sound_unit **list, + const struct file_operations *fops, + int index, int low, int top, const char *name, + umode_t mode, struct device *dev) { - struct sound_unit *s = kmalloc(sizeof(*s), GFP_KERNEL); + struct sound_unit *s; int r;
+ s = kmalloc(sizeof(*s), GFP_KERNEL); if (!s) return -ENOMEM;
@@ -263,7 +254,7 @@ static int sound_insert_unit(struct sound_unit **list, const struct file_operati retry: r = __sound_insert_unit(s, list, fops, index, low, top); spin_unlock(&sound_loader_lock); - + if (r < 0) goto fail; else if (r < SOUND_STEP) @@ -292,7 +283,8 @@ retry: }
device_create(sound_class, dev, MKDEV(SOUND_MAJOR, s->unit_minor), - NULL, "%s", s->name+6); + NULL, "%s", s->name + 6); + return s->unit_minor;
fail: @@ -305,7 +297,6 @@ fail: * completed the removal before their file operations become * invalid. */ - static void sound_remove_unit(struct sound_unit **list, int unit) { struct sound_unit *p; @@ -357,7 +348,6 @@ static struct sound_unit *chains[SOUND_STEP]; * Return: The allocated number is returned on success. On failure, * a negative error code is returned. */ - int register_sound_special_device(const struct file_operations *fops, int unit, struct device *dev) { @@ -367,69 +357,66 @@ int register_sound_special_device(const struct file_operations *fops, int unit, char _name[16];
switch (chain) { - case 0: + case 0: name = "mixer"; break; - case 1: + case 1: name = "sequencer"; if (unit >= SOUND_STEP) goto __unknown; max_unit = unit + 1; break; - case 2: + case 2: name = "midi"; break; - case 3: + case 3: name = "dsp"; break; - case 4: + case 4: name = "audio"; break; - case 5: + case 5: name = "dspW"; break; - case 8: + case 8: name = "sequencer2"; if (unit >= SOUND_STEP) goto __unknown; max_unit = unit + 1; break; - case 9: + case 9: name = "dmmidi"; break; - case 10: + case 10: name = "dmfm"; break; - case 12: + case 12: name = "adsp"; break; - case 13: + case 13: name = "amidi"; break; - case 14: + case 14: name = "admmidi"; break; - default: - { - __unknown: - sprintf(_name, "unknown%d", chain); - if (unit >= SOUND_STEP) - strcat(_name, "-"); - name = _name; - } + default: +__unknown: + sprintf(_name, "unknown%d", chain); + if (unit >= SOUND_STEP) + strcat(_name, "-"); + name = _name; break; } + return sound_insert_unit(&chains[chain], fops, -1, unit, max_unit, name, S_IRUSR | S_IWUSR, dev); } - EXPORT_SYMBOL(register_sound_special_device);
int register_sound_special(const struct file_operations *fops, int unit) { return register_sound_special_device(fops, unit, NULL); } - EXPORT_SYMBOL(register_sound_special);
/** @@ -443,13 +430,11 @@ EXPORT_SYMBOL(register_sound_special); * Return: On success, the allocated number is returned. On failure, * a negative error code is returned. */ - int register_sound_mixer(const struct file_operations *fops, int dev) { return sound_insert_unit(&chains[0], fops, dev, 0, 128, "mixer", S_IRUSR | S_IWUSR, NULL); } - EXPORT_SYMBOL(register_sound_mixer);
/** @@ -469,14 +454,13 @@ int register_sound_midi(const struct file_operations *fops, int dev) return sound_insert_unit(&chains[2], fops, dev, 2, 130, "midi", S_IRUSR | S_IWUSR, NULL); } - EXPORT_SYMBOL(register_sound_midi);
/* * DSP's are registered as a triple. Register only one and cheat * in open - see below. */ - + /** * register_sound_dsp - register a DSP device * @fops: File operations for the driver @@ -497,7 +481,6 @@ int register_sound_dsp(const struct file_operations *fops, int dev) return sound_insert_unit(&chains[3], fops, dev, 3, 131, "dsp", S_IWUSR | S_IRUSR, NULL); } - EXPORT_SYMBOL(register_sound_dsp);
/** @@ -514,7 +497,6 @@ void unregister_sound_special(int unit) { sound_remove_unit(&chains[unit % SOUND_STEP], unit); } - EXPORT_SYMBOL(unregister_sound_special);
/** @@ -529,7 +511,6 @@ void unregister_sound_mixer(int unit) { sound_remove_unit(&chains[0], unit); } - EXPORT_SYMBOL(unregister_sound_mixer);
/** @@ -544,7 +525,6 @@ void unregister_sound_midi(int unit) { sound_remove_unit(&chains[2], unit); } - EXPORT_SYMBOL(unregister_sound_midi);
/** @@ -561,21 +541,19 @@ void unregister_sound_dsp(int unit) { sound_remove_unit(&chains[3], unit); } - - EXPORT_SYMBOL(unregister_sound_dsp);
static struct sound_unit *__look_for_unit(int chain, int unit) { struct sound_unit *s; - - s=chains[chain]; - while(s && s->unit_minor <= unit) - { - if(s->unit_minor==unit) + + s = chains[chain]; + while (s && s->unit_minor <= unit) { + if (s->unit_minor == unit) return s; - s=s->next; + s = s->next; } + return NULL; }
@@ -586,14 +564,13 @@ static int soundcore_open(struct inode *inode, struct file *file) struct sound_unit *s; const struct file_operations *new_fops = NULL;
- chain=unit&0x0F; - if(chain==4 || chain==5) /* dsp/audio/dsp16 */ - { - unit&=0xF0; - unit|=3; - chain=3; + chain = unit & 0x0F; + if (chain == 4 || chain == 5) { /* dsp/audio/dsp16 */ + unit &= 0xF0; + unit |= 3; + chain = 3; } - + spin_lock(&sound_loader_lock); s = __look_for_unit(chain, unit); if (s) @@ -608,8 +585,8 @@ static int soundcore_open(struct inode *inode, struct file *file) * ALSA toplevel modules for soundcards, thus we need * load them at first. [Jaroslav Kysela perex@jcu.cz] */ - request_module("sound-slot-%i", unit>>4); - request_module("sound-service-%i-%i", unit>>4, chain); + request_module("sound-slot-%i", unit >> 4); + request_module("sound-service-%i-%i", unit >> 4, chain);
/* * sound-slot/service-* module aliases are scheduled @@ -636,10 +613,11 @@ static int soundcore_open(struct inode *inode, struct file *file) replace_fops(file, new_fops);
if (file->f_op->open) - err = file->f_op->open(inode,file); + err = file->f_op->open(inode, file);
return err; } + return -ENODEV; }