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[ALSA] Remove snd_runtime_check() macro

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Remove snd_runtime_check() macro.
This macro worsens the readability of codes.  They should be either
normal if() or removable asserts.

Also, the assert displays stack-dump, instead of only the last caller
pointer.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2005-10-10 11:46:31 +02:00 committed by Jaroslav Kysela
parent f01cc521a2
commit 7c22f1aaa2
17 changed files with 126 additions and 102 deletions
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33
Documentation/sound/alsa/DocBook/writing-an-alsa-driver.tmpl
View file

@ -18,8 +18,8 @@
</affiliation>
</author>
<date>March 6, 2005</date>
<edition>0.3.4</edition>
<date>October 6, 2005</date>
<edition>0.3.5</edition>
<abstract>
<para>
@ -30,7 +30,7 @@
<legalnotice>
<para>
Copyright (c) 2002-2004 Takashi Iwai <email>tiwai@suse.de</email>
Copyright (c) 2002-2005 Takashi Iwai <email>tiwai@suse.de</email>
</para>
<para>
@ -5998,32 +5998,23 @@ struct _snd_pcm_runtime {
The first argument is the expression to evaluate, and the
second argument is the action if it fails. When
<constant>CONFIG_SND_DEBUG</constant>, is set, it will show an
error message such as <computeroutput>BUG? (xxx) (called from
yyy)</computeroutput>. When no debug flag is set, this is
ignored.
error message such as <computeroutput>BUG? (xxx)</computeroutput>
together with stack trace.
</para>
</section>
<section id="useful-functions-snd-runtime-check">
<title><function>snd_runtime_check()</function></title>
<para>
This macro is quite similar with
<function>snd_assert()</function>. Unlike
<function>snd_assert()</function>, the expression is always
evaluated regardless of
<constant>CONFIG_SND_DEBUG</constant>. When
<constant>CONFIG_SND_DEBUG</constant> is set, the macro will
show a message like <computeroutput>ERROR (xx) (called from
yyy)</computeroutput>.
When no debug flag is set, this macro is ignored.
</para>
</section>
<section id="useful-functions-snd-bug">
<title><function>snd_BUG()</function></title>
<para>
It calls <function>snd_assert(0,)</function> -- that is, just
prints the error message at the point. It's useful to show that
a fatal error happens there.
It shows <computeroutput>BUG?</computeroutput> message and
stack trace as well as <function>snd_assert</function> at the point.
It's useful to show that a fatal error happens there.
</para>
<para>
When no debug flag is set, this macro is ignored.
</para>
</section>
</chapter>

34
include/sound/core.h
View file

@ -429,34 +429,24 @@ void snd_verbose_printd(const char *file, int line, const char *format, ...)
* When CONFIG_SND_DEBUG is not set, the expression is executed but
* not checked.
*/
#define snd_assert(expr, args...) do {\
if (unlikely(!(expr))) { \
snd_printk(KERN_ERR "BUG? (%s) (called from %p)\n", __ASTRING__(expr), __builtin_return_address(0));\
args;\
}\
#define snd_assert(expr, args...) do { \
if (unlikely(!(expr))) { \
snd_printk(KERN_ERR "BUG? (%s)\n", __ASTRING__(expr)); \
dump_stack(); \
args; \
} \
} while (0)
/**
* snd_runtime_check - run-time assertion macro
* @expr: expression
* @args...: the action
*
* This macro checks the expression in run-time and invokes the commands
* given in the rest arguments if the assertion is failed.
* Unlike snd_assert(), the action commands are executed even if
* CONFIG_SND_DEBUG is not set but without any error messages.
*/
#define snd_runtime_check(expr, args...) do {\
if (unlikely(!(expr))) { \
snd_printk(KERN_ERR "ERROR (%s) (called from %p)\n", __ASTRING__(expr), __builtin_return_address(0));\
args;\
}\
#define snd_BUG() do { \
snd_printk(KERN_ERR "BUG?\n"); \
dump_stack(); \
} while (0)
#else /* !CONFIG_SND_DEBUG */
#define snd_printd(fmt, args...) /* nothing */
#define snd_assert(expr, args...) (void)(expr)
#define snd_runtime_check(expr, args...) do { if (!(expr)) { args; } } while (0)
#define snd_BUG() /* nothing */
#endif /* CONFIG_SND_DEBUG */
@ -473,8 +463,6 @@ void snd_verbose_printd(const char *file, int line, const char *format, ...)
#define snd_printdd(format, args...) /* nothing */
#endif
#define snd_BUG() snd_assert(0, )
static inline void snd_timestamp_now(struct timespec *tstamp, int timespec)
{

18
sound/core/control.c
View file

@ -144,7 +144,7 @@ void snd_ctl_notify(snd_card_t *card, unsigned int mask, snd_ctl_elem_id_t *id)
snd_ctl_file_t *ctl;
snd_kctl_event_t *ev;
snd_runtime_check(card != NULL && id != NULL, return);
snd_assert(card != NULL && id != NULL, return);
read_lock(&card->ctl_files_rwlock);
#if defined(CONFIG_SND_MIXER_OSS) || defined(CONFIG_SND_MIXER_OSS_MODULE)
card->mixer_oss_change_count++;
@ -193,8 +193,8 @@ snd_kcontrol_t *snd_ctl_new(snd_kcontrol_t * control, unsigned int access)
snd_kcontrol_t *kctl;
unsigned int idx;
snd_runtime_check(control != NULL, return NULL);
snd_runtime_check(control->count > 0, return NULL);
snd_assert(control != NULL, return NULL);
snd_assert(control->count > 0, return NULL);
kctl = kzalloc(sizeof(*kctl) + sizeof(snd_kcontrol_volatile_t) * control->count, GFP_KERNEL);
if (kctl == NULL)
return NULL;
@ -220,7 +220,7 @@ snd_kcontrol_t *snd_ctl_new1(const snd_kcontrol_new_t * ncontrol, void *private_
snd_kcontrol_t kctl;
unsigned int access;
snd_runtime_check(ncontrol != NULL, return NULL);
snd_assert(ncontrol != NULL, return NULL);
snd_assert(ncontrol->info != NULL, return NULL);
memset(&kctl, 0, sizeof(kctl));
kctl.id.iface = ncontrol->iface;
@ -309,7 +309,7 @@ int snd_ctl_add(snd_card_t * card, snd_kcontrol_t * kcontrol)
snd_ctl_elem_id_t id;
unsigned int idx;
snd_runtime_check(card != NULL && kcontrol != NULL, return -EINVAL);
snd_assert(card != NULL && kcontrol != NULL, return -EINVAL);
snd_assert(kcontrol->info != NULL, return -EINVAL);
id = kcontrol->id;
down_write(&card->controls_rwsem);
@ -355,7 +355,7 @@ int snd_ctl_remove(snd_card_t * card, snd_kcontrol_t * kcontrol)
snd_ctl_elem_id_t id;
unsigned int idx;
snd_runtime_check(card != NULL && kcontrol != NULL, return -EINVAL);
snd_assert(card != NULL && kcontrol != NULL, return -EINVAL);
list_del(&kcontrol->list);
card->controls_count -= kcontrol->count;
id = kcontrol->id;
@ -468,7 +468,7 @@ snd_kcontrol_t *snd_ctl_find_numid(snd_card_t * card, unsigned int numid)
struct list_head *list;
snd_kcontrol_t *kctl;
snd_runtime_check(card != NULL && numid != 0, return NULL);
snd_assert(card != NULL && numid != 0, return NULL);
list_for_each(list, &card->controls) {
kctl = snd_kcontrol(list);
if (kctl->id.numid <= numid && kctl->id.numid + kctl->count > numid)
@ -494,7 +494,7 @@ snd_kcontrol_t *snd_ctl_find_id(snd_card_t * card, snd_ctl_elem_id_t *id)
struct list_head *list;
snd_kcontrol_t *kctl;
snd_runtime_check(card != NULL && id != NULL, return NULL);
snd_assert(card != NULL && id != NULL, return NULL);
if (id->numid != 0)
return snd_ctl_find_numid(card, id->numid);
list_for_each(list, &card->controls) {
@ -1215,7 +1215,7 @@ static int _snd_ctl_unregister_ioctl(snd_kctl_ioctl_func_t fcn, struct list_head
struct list_head *list;
snd_kctl_ioctl_t *p;
snd_runtime_check(fcn != NULL, return -EINVAL);
snd_assert(fcn != NULL, return -EINVAL);
down_write(&snd_ioctl_rwsem);
list_for_each(list, lists) {
p = list_entry(list, snd_kctl_ioctl_t, list);

5
sound/core/init.c
View file

@ -420,7 +420,7 @@ int snd_card_register(snd_card_t * card)
int err;
snd_info_entry_t *entry;
snd_runtime_check(card != NULL, return -EINVAL);
snd_assert(card != NULL, return -EINVAL);
if ((err = snd_device_register_all(card)) < 0)
return err;
write_lock(&snd_card_rwlock);
@ -524,7 +524,8 @@ int __init snd_card_info_init(void)
snd_info_entry_t *entry;
entry = snd_info_create_module_entry(THIS_MODULE, "cards", NULL);
snd_runtime_check(entry != NULL, return -ENOMEM);
if (! entry)
return -ENOMEM;
entry->c.text.read_size = PAGE_SIZE;
entry->c.text.read = snd_card_info_read;
if (snd_info_register(entry) < 0) {

59
sound/core/oss/mixer_oss.c
View file

@ -521,9 +521,13 @@ static void snd_mixer_oss_get_volume1_vol(snd_mixer_oss_file_t *fmixer,
uctl = kzalloc(sizeof(*uctl), GFP_KERNEL);
if (uinfo == NULL || uctl == NULL)
goto __unalloc;
snd_runtime_check(!kctl->info(kctl, uinfo), goto __unalloc);
snd_runtime_check(!kctl->get(kctl, uctl), goto __unalloc);
snd_runtime_check(uinfo->type != SNDRV_CTL_ELEM_TYPE_BOOLEAN || uinfo->value.integer.min != 0 || uinfo->value.integer.max != 1, goto __unalloc);
if (kctl->info(kctl, uinfo))
goto __unalloc;
if (kctl->get(kctl, uctl))
goto __unalloc;
if (uinfo->type == SNDRV_CTL_ELEM_TYPE_BOOLEAN &&
uinfo->value.integer.min == 0 && uinfo->value.integer.max == 1)
goto __unalloc;
*left = snd_mixer_oss_conv1(uctl->value.integer.value[0], uinfo->value.integer.min, uinfo->value.integer.max, &pslot->volume[0]);
if (uinfo->count > 1)
*right = snd_mixer_oss_conv1(uctl->value.integer.value[1], uinfo->value.integer.min, uinfo->value.integer.max, &pslot->volume[1]);
@ -555,8 +559,10 @@ static void snd_mixer_oss_get_volume1_sw(snd_mixer_oss_file_t *fmixer,
uctl = kzalloc(sizeof(*uctl), GFP_KERNEL);
if (uinfo == NULL || uctl == NULL)
goto __unalloc;
snd_runtime_check(!kctl->info(kctl, uinfo), goto __unalloc);
snd_runtime_check(!kctl->get(kctl, uctl), goto __unalloc);
if (kctl->info(kctl, uinfo))
goto __unalloc;
if (kctl->get(kctl, uctl))
goto __unalloc;
if (!uctl->value.integer.value[0]) {
*left = 0;
if (uinfo->count == 1)
@ -616,12 +622,16 @@ static void snd_mixer_oss_put_volume1_vol(snd_mixer_oss_file_t *fmixer,
uctl = kzalloc(sizeof(*uctl), GFP_KERNEL);
if (uinfo == NULL || uctl == NULL)
goto __unalloc;
snd_runtime_check(!kctl->info(kctl, uinfo), goto __unalloc);
snd_runtime_check(uinfo->type != SNDRV_CTL_ELEM_TYPE_BOOLEAN || uinfo->value.integer.min != 0 || uinfo->value.integer.max != 1, goto __unalloc);
if (kctl->info(kctl, uinfo))
goto __unalloc;
if (uinfo->type == SNDRV_CTL_ELEM_TYPE_BOOLEAN &&
uinfo->value.integer.min == 0 && uinfo->value.integer.max == 1)
goto __unalloc;
uctl->value.integer.value[0] = snd_mixer_oss_conv2(left, uinfo->value.integer.min, uinfo->value.integer.max);
if (uinfo->count > 1)
uctl->value.integer.value[1] = snd_mixer_oss_conv2(right, uinfo->value.integer.min, uinfo->value.integer.max);
snd_runtime_check((res = kctl->put(kctl, uctl)) >= 0, goto __unalloc);
if ((res = kctl->put(kctl, uctl)) < 0)
goto __unalloc;
if (res > 0)
snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id);
__unalloc:
@ -653,7 +663,8 @@ static void snd_mixer_oss_put_volume1_sw(snd_mixer_oss_file_t *fmixer,
uctl = kzalloc(sizeof(*uctl), GFP_KERNEL);
if (uinfo == NULL || uctl == NULL)
goto __unalloc;
snd_runtime_check(!kctl->info(kctl, uinfo), goto __unalloc);
if (kctl->info(kctl, uinfo))
goto __unalloc;
if (uinfo->count > 1) {
uctl->value.integer.value[0] = left > 0 ? 1 : 0;
uctl->value.integer.value[route ? 3 : 1] = right > 0 ? 1 : 0;
@ -664,7 +675,8 @@ static void snd_mixer_oss_put_volume1_sw(snd_mixer_oss_file_t *fmixer,
} else {
uctl->value.integer.value[0] = (left > 0 || right > 0) ? 1 : 0;
}
snd_runtime_check((res = kctl->put(kctl, uctl)) >= 0, goto __unalloc);
if ((res = kctl->put(kctl, uctl)) < 0)
goto __unalloc;
if (res > 0)
snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id);
__unalloc:
@ -776,9 +788,14 @@ static int snd_mixer_oss_get_recsrc2(snd_mixer_oss_file_t *fmixer, unsigned int
}
down_read(&card->controls_rwsem);
kctl = snd_mixer_oss_test_id(mixer, "Capture Source", 0);
snd_runtime_check(kctl != NULL, err = -ENOENT; goto __unlock);
snd_runtime_check(!(err = kctl->info(kctl, uinfo)), goto __unlock);
snd_runtime_check(!(err = kctl->get(kctl, uctl)), goto __unlock);
if (! kctl) {
err = -ENOENT;
goto __unlock;
}
if ((err = kctl->info(kctl, uinfo)) < 0)
goto __unlock;
if ((err = kctl->get(kctl, uctl)) < 0)
goto __unlock;
for (idx = 0; idx < 32; idx++) {
if (!(mixer->mask_recsrc & (1 << idx)))
continue;
@ -821,8 +838,12 @@ static int snd_mixer_oss_put_recsrc2(snd_mixer_oss_file_t *fmixer, unsigned int
}
down_read(&card->controls_rwsem);
kctl = snd_mixer_oss_test_id(mixer, "Capture Source", 0);
snd_runtime_check(kctl != NULL, err = -ENOENT; goto __unlock);
snd_runtime_check(!(err = kctl->info(kctl, uinfo)), goto __unlock);
if (! kctl) {
err = -ENOENT;
goto __unlock;
}
if ((err = kctl->info(kctl, uinfo)) < 0)
goto __unlock;
for (idx = 0; idx < 32; idx++) {
if (!(mixer->mask_recsrc & (1 << idx)))
continue;
@ -836,10 +857,11 @@ static int snd_mixer_oss_put_recsrc2(snd_mixer_oss_file_t *fmixer, unsigned int
break;
slot = NULL;
}
snd_runtime_check(slot != NULL, goto __unlock);
if (! slot)
goto __unlock;
for (idx = 0; idx < uinfo->count; idx++)
uctl->value.enumerated.item[idx] = slot->capture_item;
snd_runtime_check((err = kctl->put(kctl, uctl)) >= 0, );
err = kctl->put(kctl, uctl);
if (err > 0)
snd_ctl_notify(fmixer->card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id);
err = 0;
@ -1008,7 +1030,8 @@ static int snd_mixer_oss_build_input(snd_mixer_oss_t *mixer, struct snd_mixer_os
up_read(&mixer->card->controls_rwsem);
if (slot.present != 0) {
pslot = (struct slot *)kmalloc(sizeof(slot), GFP_KERNEL);
snd_runtime_check(pslot != NULL, return -ENOMEM);
if (! pslot)
return -ENOMEM;
*pslot = slot;
pslot->signature = SNDRV_MIXER_OSS_SIGNATURE;
pslot->assigned = ptr;

3
sound/core/pcm.c
View file

@ -273,7 +273,8 @@ static void snd_pcm_proc_info_read(snd_pcm_substream_t *substream, snd_info_buff
snd_pcm_info_t *info;
int err;
snd_runtime_check(substream, return);
if (! substream)
return;
info = kmalloc(sizeof(*info), GFP_KERNEL);
if (! info) {

3
sound/core/pcm_lib.c
View file

@ -156,9 +156,8 @@ static inline snd_pcm_uframes_t snd_pcm_update_hw_ptr_pos(snd_pcm_substream_t *s
#ifdef CONFIG_SND_DEBUG
if (pos >= runtime->buffer_size) {
snd_printk(KERN_ERR "BUG: stream = %i, pos = 0x%lx, buffer size = 0x%lx, period size = 0x%lx\n", substream->stream, pos, runtime->buffer_size, runtime->period_size);
} else
}
#endif
snd_runtime_check(pos < runtime->buffer_size, return 0);
pos -= pos % runtime->min_align;
return pos;
}

3
sound/core/pcm_native.c
View file

@ -2053,7 +2053,8 @@ static int snd_pcm_open(struct inode *inode, struct file *file)
snd_pcm_file_t *pcm_file;
wait_queue_t wait;
snd_runtime_check(device >= SNDRV_MINOR_PCM_PLAYBACK && device < SNDRV_MINOR_DEVICES, return -ENXIO);
if (device < SNDRV_MINOR_PCM_PLAYBACK || device >= SNDRV_MINOR_DEVICES)
return -ENXIO;
pcm = snd_pcm_devices[(cardnum * SNDRV_PCM_DEVICES) + (device % SNDRV_MINOR_PCMS)];
if (pcm == NULL) {
err = -ENODEV;

2
sound/core/seq/seq_midi.c
View file

@ -449,11 +449,9 @@ snd_seq_midisynth_unregister_port(snd_seq_device_t *dev)
client->ports_per_device[device] = 0;
msynth = client->ports[device];
client->ports[device] = NULL;
snd_runtime_check(msynth != NULL || ports <= 0, goto __skip);
for (p = 0; p < ports; p++)
snd_seq_midisynth_delete(&msynth[p]);
kfree(msynth);
__skip:
client->num_ports--;
if (client->num_ports <= 0) {
snd_seq_delete_kernel_client(client->seq_client);

3
sound/core/timer.c
View file

@ -879,7 +879,8 @@ void snd_timer_notify(snd_timer_t *timer, enum sndrv_timer_event event, struct t
snd_timer_instance_t *ti, *ts;
struct list_head *p, *n;
snd_runtime_check(timer->hw.flags & SNDRV_TIMER_HW_SLAVE, return);
if (! (timer->hw.flags & SNDRV_TIMER_HW_SLAVE))
return;
snd_assert(event >= SNDRV_TIMER_EVENT_MSTART && event <= SNDRV_TIMER_EVENT_MRESUME, return);
spin_lock_irqsave(&timer->lock, flags);
if (event == SNDRV_TIMER_EVENT_MSTART ||

5
sound/isa/cs423x/cs4236_lib.c
View file

@ -173,7 +173,10 @@ static unsigned char divisor_to_rate_register(unsigned int divisor)
case 2117: return 6;
case 2558: return 7;
default:
snd_runtime_check(divisor >= 21 && divisor <= 192, return 192);
if (divisor < 21 || divisor > 192) {
snd_BUG();
return 192;
}
return divisor;
}
}

1
sound/pci/ac97/ac97_codec.c
View file

@ -1127,7 +1127,6 @@ snd_kcontrol_t *snd_ac97_cnew(const snd_kcontrol_new_t *_template, ac97_t * ac97
{
snd_kcontrol_new_t template;
memcpy(&template, _template, sizeof(template));
snd_runtime_check(!template.index, return NULL);
template.index = ac97->num;
return snd_ctl_new1(&template, ac97);
}

3
sound/pci/ac97/ac97_patch.c
View file

@ -1460,7 +1460,8 @@ int patch_ad1881(ac97_t * ac97)
codecs[1] = patch_ad1881_unchained(ac97, 1, (1<<14));
codecs[2] = patch_ad1881_unchained(ac97, 2, (1<<13));
snd_runtime_check(codecs[0] | codecs[1] | codecs[2], goto __end);
if (! (codecs[0] || codecs[1] || codecs[2]))
goto __end;
for (idx = 0; idx < 3; idx++)
if (ac97->spec.ad18xx.unchained[idx])

34
sound/pci/emu10k1/emufx.c
View file

@ -364,12 +364,18 @@ static int snd_emu10k1_gpr_ctl_put(snd_kcontrol_t * kcontrol, snd_ctl_elem_value
snd_emu10k1_ptr_write(emu, emu->gpr_base + ctl->gpr[i], 0, db_table[val]);
break;
case EMU10K1_GPR_TRANSLATION_BASS:
snd_runtime_check((ctl->count % 5) == 0 && (ctl->count / 5) == ctl->vcount, change = -EIO; goto __error);
if ((ctl->count % 5) != 0 || (ctl->count / 5) != ctl->vcount) {
change = -EIO;
goto __error;
}
for (j = 0; j < 5; j++)
snd_emu10k1_ptr_write(emu, emu->gpr_base + ctl->gpr[j * ctl->vcount + i], 0, bass_table[val][j]);
break;
case EMU10K1_GPR_TRANSLATION_TREBLE:
snd_runtime_check((ctl->count % 5) == 0 && (ctl->count / 5) == ctl->vcount, change = -EIO; goto __error);
if ((ctl->count % 5) != 0 || (ctl->count / 5) != ctl->vcount) {
change = -EIO;
goto __error;
}
for (j = 0; j < 5; j++)
snd_emu10k1_ptr_write(emu, emu->gpr_base + ctl->gpr[j * ctl->vcount + i], 0, treble_table[val][j]);
break;
@ -412,8 +418,6 @@ int snd_emu10k1_fx8010_register_irq_handler(emu10k1_t *emu,
snd_emu10k1_fx8010_irq_t *irq;
unsigned long flags;
snd_runtime_check(emu, return -EINVAL);
snd_runtime_check(handler, return -EINVAL);
irq = kmalloc(sizeof(*irq), GFP_ATOMIC);
if (irq == NULL)
return -ENOMEM;
@ -442,7 +446,6 @@ int snd_emu10k1_fx8010_unregister_irq_handler(emu10k1_t *emu,
snd_emu10k1_fx8010_irq_t *tmp;
unsigned long flags;
snd_runtime_check(irq, return -EINVAL);
spin_lock_irqsave(&emu->fx8010.irq_lock, flags);
if ((tmp = emu->fx8010.irq_handlers) == irq) {
emu->fx8010.irq_handlers = tmp->next;
@ -717,9 +720,15 @@ static int snd_emu10k1_add_controls(emu10k1_t *emu, emu10k1_fx8010_code_t *icode
err = -EFAULT;
goto __error;
}
snd_runtime_check(gctl->id.iface == SNDRV_CTL_ELEM_IFACE_MIXER ||
gctl->id.iface == SNDRV_CTL_ELEM_IFACE_PCM, err = -EINVAL; goto __error);
snd_runtime_check(gctl->id.name[0] != '\0', err = -EINVAL; goto __error);
if (gctl->id.iface != SNDRV_CTL_ELEM_IFACE_MIXER &&
gctl->id.iface != SNDRV_CTL_ELEM_IFACE_PCM) {
err = -EINVAL;
goto __error;
}
if (! gctl->id.name[0]) {
err = -EINVAL;
goto __error;
}
ctl = snd_emu10k1_look_for_ctl(emu, &gctl->id);
memset(&knew, 0, sizeof(knew));
knew.iface = gctl->id.iface;
@ -783,7 +792,8 @@ static int snd_emu10k1_del_controls(emu10k1_t *emu, emu10k1_fx8010_code_t *icode
for (i = 0, _id = icode->gpr_del_controls;
i < icode->gpr_del_control_count; i++, _id++) {
snd_runtime_check(copy_from_user(&id, _id, sizeof(id)) == 0, return -EFAULT);
if (copy_from_user(&id, _id, sizeof(id)))
return -EFAULT;
down_write(&card->controls_rwsem);
ctl = snd_emu10k1_look_for_ctl(emu, &id);
if (ctl)
@ -2075,14 +2085,16 @@ void snd_emu10k1_free_efx(emu10k1_t *emu)
#if 0 // FIXME: who use them?
int snd_emu10k1_fx8010_tone_control_activate(emu10k1_t *emu, int output)
{
snd_runtime_check(output >= 0 && output < 6, return -EINVAL);
if (output < 0 || output >= 6)
return -EINVAL;
snd_emu10k1_ptr_write(emu, emu->gpr_base + 0x94 + output, 0, 1);
return 0;
}
int snd_emu10k1_fx8010_tone_control_deactivate(emu10k1_t *emu, int output)
{
snd_runtime_check(output >= 0 && output < 6, return -EINVAL);
if (output < 0 || output >= 6)
return -EINVAL;
snd_emu10k1_ptr_write(emu, emu->gpr_base + 0x94 + output, 0, 0);
return 0;
}

3
sound/pci/emu10k1/emupcm.c
View file

@ -965,7 +965,8 @@ static void snd_emu10k1_pcm_mixer_notify1(emu10k1_t *emu, snd_kcontrol_t *kctl,
{
snd_ctl_elem_id_t id;
snd_runtime_check(kctl != NULL, return);
if (! kctl)
return;
if (activate)
kctl->vd[idx].access &= ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
else

3
sound/pci/trident/trident_main.c
View file

@ -2893,7 +2893,8 @@ static void snd_trident_notify_pcm_change1(snd_card_t * card, snd_kcontrol_t *kc
{
snd_ctl_elem_id_t id;
snd_runtime_check(kctl != NULL, return);
if (! kctl)
return;
if (activate)
kctl->vd[num].access &= ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
else

16
sound/ppc/pmac.c
View file

@ -220,7 +220,8 @@ static int snd_pmac_pcm_prepare(pmac_t *chip, pmac_stream_t *rec, snd_pcm_substr
/* set up constraints */
astr = snd_pmac_get_stream(chip, another_stream(rec->stream));
snd_runtime_check(astr, return -EINVAL);
if (! astr)
return -EINVAL;
astr->cur_freqs = 1 << rate_index;
astr->cur_formats = 1 << runtime->format;
chip->rate_index = rate_index;
@ -467,7 +468,8 @@ static int snd_pmac_hw_rule_rate(snd_pcm_hw_params_t *params,
pmac_stream_t *rec = snd_pmac_get_stream(chip, rule->deps[0]);
int i, freq_table[8], num_freqs;
snd_runtime_check(rec, return -EINVAL);
if (! rec)
return -EINVAL;
num_freqs = 0;
for (i = chip->num_freqs - 1; i >= 0; i--) {
if (rec->cur_freqs & (1 << i))
@ -484,7 +486,8 @@ static int snd_pmac_hw_rule_format(snd_pcm_hw_params_t *params,
pmac_t *chip = rule->private;
pmac_stream_t *rec = snd_pmac_get_stream(chip, rule->deps[0]);
snd_runtime_check(rec, return -EINVAL);
if (! rec)
return -EINVAL;
return snd_mask_refine_set(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT),
rec->cur_formats);
}
@ -569,7 +572,8 @@ static int snd_pmac_pcm_close(pmac_t *chip, pmac_stream_t *rec, snd_pcm_substrea
snd_pmac_dma_stop(rec);
astr = snd_pmac_get_stream(chip, another_stream(rec->stream));
snd_runtime_check(astr, return -EINVAL);
if (! astr)
return -EINVAL;
/* reset constraints */
astr->cur_freqs = chip->freqs_ok;
@ -1158,7 +1162,6 @@ int __init snd_pmac_new(snd_card_t *card, pmac_t **chip_return)
.dev_free = snd_pmac_dev_free,
};
snd_runtime_check(chip_return, return -EINVAL);
*chip_return = NULL;
chip = kzalloc(sizeof(*chip), GFP_KERNEL);
@ -1382,7 +1385,8 @@ static int snd_pmac_sleep_notify(struct pmu_sleep_notifier *self, int when)
pmac_t *chip;
chip = sleeping_pmac;
snd_runtime_check(chip, return 0);
if (! chip)
return 0;
switch (when) {
case PBOOK_SLEEP_NOW: