ALSA: Kill snd_assert() in sound/pci/*

Kill snd_assert() in sound/pci/*, either removed or replaced with
if () with snd_BUG_ON().

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>

3 files changed, 146 insertions, 92 deletions

diff --git a/sound/pci/cs46xx/cs46xx_lib.c b/sound/pci/cs46xx/cs46xx_lib.c
index e214e567dec8..a10ab8283f9a 100644
--- a/sound/pci/cs46xx/cs46xx_lib.c
+++ b/sound/pci/cs46xx/cs46xx_lib.c
@@ -90,9 +90,10 @@ static unsigned short snd_cs46xx_codec_read(struct snd_cs46xx *chip,
         int count;
         unsigned short result,tmp;
         u32 offset = 0;
-        snd_assert ( (codec_index == CS46XX_PRIMARY_CODEC_INDEX) ||
-                     (codec_index == CS46XX_SECONDARY_CODEC_INDEX),
-                     return -EINVAL);
+
+        if (snd_BUG_ON(codec_index != CS46XX_PRIMARY_CODEC_INDEX &&
+                       codec_index != CS46XX_SECONDARY_CODEC_INDEX))
+                return -EINVAL;
 
         chip->active_ctrl(chip, 1);
 
@@ -212,9 +213,9 @@ static unsigned short snd_cs46xx_ac97_read(struct snd_ac97 * ac97,
         unsigned short val;
         int codec_index = ac97->num;
 
-        snd_assert(codec_index == CS46XX_PRIMARY_CODEC_INDEX ||
-                   codec_index == CS46XX_SECONDARY_CODEC_INDEX,
-                   return 0xffff);
+        if (snd_BUG_ON(codec_index != CS46XX_PRIMARY_CODEC_INDEX &&
+                       codec_index != CS46XX_SECONDARY_CODEC_INDEX))
+                return 0xffff;
 
         val = snd_cs46xx_codec_read(chip, reg, codec_index);
 
@@ -229,9 +230,9 @@ static void snd_cs46xx_codec_write(struct snd_cs46xx *chip,
 {
         int count;
 
-        snd_assert ((codec_index == CS46XX_PRIMARY_CODEC_INDEX) ||
-                    (codec_index == CS46XX_SECONDARY_CODEC_INDEX),
-                    return);
+        if (snd_BUG_ON(codec_index != CS46XX_PRIMARY_CODEC_INDEX &&
+                       codec_index != CS46XX_SECONDARY_CODEC_INDEX))
+                return;
 
         chip->active_ctrl(chip, 1);
 
@@ -294,9 +295,9 @@ static void snd_cs46xx_ac97_write(struct snd_ac97 *ac97,
         struct snd_cs46xx *chip = ac97->private_data;
         int codec_index = ac97->num;
 
-        snd_assert(codec_index == CS46XX_PRIMARY_CODEC_INDEX ||
-                   codec_index == CS46XX_SECONDARY_CODEC_INDEX,
-                   return);
+        if (snd_BUG_ON(codec_index != CS46XX_PRIMARY_CODEC_INDEX &&
+                       codec_index != CS46XX_SECONDARY_CODEC_INDEX))
+                return;
 
         snd_cs46xx_codec_write(chip, reg, val, codec_index);
 }
@@ -315,7 +316,8 @@ int snd_cs46xx_download(struct snd_cs46xx *chip,
         unsigned int bank = offset >> 16;
         offset = offset & 0xffff;
 
-        snd_assert(!(offset & 3) && !(len & 3), return -EINVAL);
+        if (snd_BUG_ON((offset & 3) || (len & 3)))
+                return -EINVAL;
         dst = chip->region.idx[bank+1].remap_addr + offset;
         len /= sizeof(u32);
 
@@ -343,7 +345,8 @@ int snd_cs46xx_clear_BA1(struct snd_cs46xx *chip,
         unsigned int bank = offset >> 16;
         offset = offset & 0xffff;
 
-        snd_assert(!(offset & 3) && !(len & 3), return -EINVAL);
+        if (snd_BUG_ON((offset & 3) || (len & 3)))
+                return -EINVAL;
         dst = chip->region.idx[bank+1].remap_addr + offset;
         len /= sizeof(u32);
 
@@ -722,7 +725,9 @@ static snd_pcm_uframes_t snd_cs46xx_playback_direct_pointer(struct snd_pcm_subst
         struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
         size_t ptr;
         struct snd_cs46xx_pcm *cpcm = substream->runtime->private_data;
-        snd_assert (cpcm->pcm_channel,return -ENXIO);
+
+        if (snd_BUG_ON(!cpcm->pcm_channel))
+                return -ENXIO;
 
 #ifdef CONFIG_SND_CS46XX_NEW_DSP
         ptr = snd_cs46xx_peek(chip, (cpcm->pcm_channel->pcm_reader_scb->address + 2) << 2);
@@ -740,7 +745,8 @@ static snd_pcm_uframes_t snd_cs46xx_playback_indirect_pointer(struct snd_pcm_sub
         struct snd_cs46xx_pcm *cpcm = substream->runtime->private_data;
 
 #ifdef CONFIG_SND_CS46XX_NEW_DSP
-        snd_assert (cpcm->pcm_channel,return -ENXIO);
+        if (snd_BUG_ON(!cpcm->pcm_channel))
+                return -ENXIO;
         ptr = snd_cs46xx_peek(chip, (cpcm->pcm_channel->pcm_reader_scb->address + 2) << 2);
 #else
         ptr = snd_cs46xx_peek(chip, BA1_PBA);
@@ -908,7 +914,8 @@ static int snd_cs46xx_playback_hw_params(struct snd_pcm_substream *substream,
         cpcm = runtime->private_data;
 
 #ifdef CONFIG_SND_CS46XX_NEW_DSP
-        snd_assert (sample_rate != 0, return -ENXIO);
+        if (snd_BUG_ON(!sample_rate))
+                return -ENXIO;
 
         mutex_lock(&chip->spos_mutex);
 
@@ -917,7 +924,7 @@ static int snd_cs46xx_playback_hw_params(struct snd_pcm_substream *substream,
                 return -ENXIO;
         }
 
-        snd_assert (cpcm->pcm_channel != NULL);
+        snd_BUG_ON(!cpcm->pcm_channel);
         if (!cpcm->pcm_channel) {
                 mutex_unlock(&chip->spos_mutex);
                 return -ENXIO;
@@ -952,7 +959,7 @@ static int snd_cs46xx_playback_hw_params(struct snd_pcm_substream *substream,
                 } else if (cpcm->pcm_channel_id == DSP_IEC958_CHANNEL) {
                         substream->ops = &snd_cs46xx_playback_iec958_ops;
                 } else {
-                        snd_assert(0);
+                        snd_BUG();
                 }
 #else
                 substream->ops = &snd_cs46xx_playback_ops;
@@ -981,7 +988,7 @@ static int snd_cs46xx_playback_hw_params(struct snd_pcm_substream *substream,
                 } else if (cpcm->pcm_channel_id == DSP_IEC958_CHANNEL) {
                         substream->ops = &snd_cs46xx_playback_indirect_iec958_ops;
                 } else {
-                        snd_assert(0);
+                        snd_BUG();
                 }
 #else
                 substream->ops = &snd_cs46xx_playback_indirect_ops;
@@ -1029,7 +1036,8 @@ static int snd_cs46xx_playback_prepare(struct snd_pcm_substream *substream)
         cpcm = runtime->private_data;
 
 #ifdef CONFIG_SND_CS46XX_NEW_DSP
-    snd_assert (cpcm->pcm_channel != NULL, return -ENXIO);
+        if (snd_BUG_ON(!cpcm->pcm_channel))
+                return -ENXIO;
 
         pfie = snd_cs46xx_peek(chip, (cpcm->pcm_channel->pcm_reader_scb->address + 1) << 2 );
         pfie &= ~0x0000f03f;
@@ -1714,9 +1722,9 @@ static void snd_cs46xx_mixer_free_ac97(struct snd_ac97 *ac97)
 {
         struct snd_cs46xx *chip = ac97->private_data;
 
-        snd_assert ((ac97 == chip->ac97[CS46XX_PRIMARY_CODEC_INDEX]) ||
-                    (ac97 == chip->ac97[CS46XX_SECONDARY_CODEC_INDEX]),
-                    return);
+        if (snd_BUG_ON(ac97 != chip->ac97[CS46XX_PRIMARY_CODEC_INDEX] &&
+                       ac97 != chip->ac97[CS46XX_SECONDARY_CODEC_INDEX]))
+                return;
 
         if (ac97 == chip->ac97[CS46XX_PRIMARY_CODEC_INDEX]) {
                 chip->ac97[CS46XX_PRIMARY_CODEC_INDEX] = NULL;
@@ -1864,7 +1872,7 @@ static int snd_cs46xx_iec958_put(struct snd_kcontrol *kcontrol,
                 break;
         default:
                 res = -EINVAL;
-                snd_assert(0, (void)0);
+                snd_BUG(); /* should never happen ... */
         }
 
         return res;
@@ -2236,7 +2244,7 @@ static void snd_cs46xx_codec_reset (struct snd_ac97 * ac97)
                 snd_printdd("cs46xx: CODOEC2 mode %04x\n",0x3);
                 snd_cs46xx_ac97_write(ac97,AC97_CSR_ACMODE,0x3);
         } else {
-                snd_assert(0); /* should never happen ... */
+                snd_BUG(); /* should never happen ... */
         }
 
         udelay(50);
@@ -2553,7 +2561,8 @@ static void snd_cs46xx_gameport_trigger(struct gameport *gameport)
 {
         struct snd_cs46xx *chip = gameport_get_port_data(gameport);
 
-        snd_assert(chip, return);
+        if (snd_BUG_ON(!chip))
+                return;
         snd_cs46xx_pokeBA0(chip, BA0_JSPT, 0xFF);  //outb(gameport->io, 0xFF);
 }
 
@@ -2561,7 +2570,8 @@ static unsigned char snd_cs46xx_gameport_read(struct gameport *gameport)
 {
         struct snd_cs46xx *chip = gameport_get_port_data(gameport);
 
-        snd_assert(chip, return 0);
+        if (snd_BUG_ON(!chip))
+                return 0;
         return snd_cs46xx_peekBA0(chip, BA0_JSPT); //inb(gameport->io);
 }
 
@@ -2570,7 +2580,8 @@ static int snd_cs46xx_gameport_cooked_read(struct gameport *gameport, int *axes,
         struct snd_cs46xx *chip = gameport_get_port_data(gameport);
         unsigned js1, js2, jst;
 
-        snd_assert(chip, return 0);
+        if (snd_BUG_ON(!chip))
+                return 0;
 
         js1 = snd_cs46xx_peekBA0(chip, BA0_JSC1);
         js2 = snd_cs46xx_peekBA0(chip, BA0_JSC2);
@@ -2754,7 +2765,8 @@ static int snd_cs46xx_free(struct snd_cs46xx *chip)
 {
         int idx;
 
-        snd_assert(chip != NULL, return -EINVAL);
+        if (snd_BUG_ON(!chip))
+                return -EINVAL;
 
         if (chip->active_ctrl)
                 chip->active_ctrl(chip, 1);
diff --git a/sound/pci/cs46xx/dsp_spos.c b/sound/pci/cs46xx/dsp_spos.c
index ccc8bedb5b1a..f4f0c8f5dad7 100644
--- a/sound/pci/cs46xx/dsp_spos.c
+++ b/sound/pci/cs46xx/dsp_spos.c
@@ -63,7 +63,8 @@ static int shadow_and_reallocate_code (struct snd_cs46xx * chip, u32 * data, u32
         u32 mop_operands,mop_type,wide_op;
         struct dsp_spos_instance * ins = chip->dsp_spos_instance;
 
-        snd_assert( ((size % 2) == 0), return -EINVAL);
+        if (snd_BUG_ON(size %2))
+                return -EINVAL;
   
         while (i < size) {
                 loval = data[i++];
@@ -289,7 +290,8 @@ void  cs46xx_dsp_spos_destroy (struct snd_cs46xx * chip)
         int i;
         struct dsp_spos_instance * ins = chip->dsp_spos_instance;
 
-        snd_assert(ins != NULL, return);
+        if (snd_BUG_ON(!ins))
+                return;
 
         mutex_lock(&chip->spos_mutex);
         for (i = 0; i < ins->nscb; ++i) {
@@ -404,7 +406,8 @@ int cs46xx_dsp_load_module (struct snd_cs46xx * chip, struct dsp_module_desc * m
 
                 /* if module has a code segment it must have
                    symbol table */
-                snd_assert(module->symbol_table.symbols != NULL ,return -ENOMEM);
+                if (snd_BUG_ON(!module->symbol_table.symbols))
+                        return -ENOMEM;
                 if (add_symbols(chip,module)) {
                         snd_printk(KERN_ERR "dsp_spos: failed to load symbol table\n");
                         return -ENOMEM;
@@ -1369,7 +1372,8 @@ int cs46xx_dsp_scb_and_task_init (struct snd_cs46xx *chip)
 
         valid_slots = snd_cs46xx_peekBA0(chip, BA0_ACOSV);
 
-        snd_assert (chip->nr_ac97_codecs == 1 || chip->nr_ac97_codecs == 2);
+        if (snd_BUG_ON(chip->nr_ac97_codecs != 1 && chip->nr_ac97_codecs != 2))
+                goto _fail_end;
 
         if (chip->nr_ac97_codecs == 1) {
                 /* output on slot 5 and 11 
@@ -1609,11 +1613,14 @@ static int cs46xx_dsp_async_init (struct snd_cs46xx *chip,
 
                 spdifo_scb_desc = cs46xx_dsp_create_scb(chip,"SPDIFOSCB",(u32 *)&spdifo_scb,SPDIFO_SCB_INST);
 
-                snd_assert(spdifo_scb_desc, return -EIO);
+                if (snd_BUG_ON(!spdifo_scb_desc))
+                        return -EIO;
                 spdifi_scb_desc = cs46xx_dsp_create_scb(chip,"SPDIFISCB",(u32 *)&spdifi_scb,SPDIFI_SCB_INST);
-                snd_assert(spdifi_scb_desc, return -EIO);
+                if (snd_BUG_ON(!spdifi_scb_desc))
+                        return -EIO;
                 async_codec_scb_desc = cs46xx_dsp_create_scb(chip,"AsynCodecInputSCB",(u32 *)&async_codec_input_scb, HFG_TREE_SCB);
-                snd_assert(async_codec_scb_desc, return -EIO);
+                if (snd_BUG_ON(!async_codec_scb_desc))
+                        return -EIO;
 
                 async_codec_scb_desc->parent_scb_ptr = NULL;
                 async_codec_scb_desc->next_scb_ptr = spdifi_scb_desc;
@@ -1698,8 +1705,10 @@ int cs46xx_dsp_enable_spdif_in (struct snd_cs46xx *chip)
         chip->active_ctrl(chip, 1);
         chip->amplifier_ctrl(chip, 1);
 
-        snd_assert (ins->asynch_rx_scb == NULL,return -EINVAL);
-        snd_assert (ins->spdif_in_src != NULL,return -EINVAL);
+        if (snd_BUG_ON(ins->asynch_rx_scb))
+                return -EINVAL;
+        if (snd_BUG_ON(!ins->spdif_in_src))
+                return -EINVAL;
 
         mutex_lock(&chip->spos_mutex);
 
@@ -1754,8 +1763,10 @@ int cs46xx_dsp_disable_spdif_in (struct snd_cs46xx *chip)
 {
         struct dsp_spos_instance * ins = chip->dsp_spos_instance;
 
-        snd_assert (ins->asynch_rx_scb != NULL, return -EINVAL);
-        snd_assert (ins->spdif_in_src != NULL,return -EINVAL);  
+        if (snd_BUG_ON(!ins->asynch_rx_scb))
+                return -EINVAL;
+        if (snd_BUG_ON(!ins->spdif_in_src))
+                return -EINVAL;
 
         mutex_lock(&chip->spos_mutex);
 
@@ -1780,8 +1791,10 @@ int cs46xx_dsp_enable_pcm_capture (struct snd_cs46xx *chip)
 {
         struct dsp_spos_instance * ins = chip->dsp_spos_instance;
 
-        snd_assert (ins->pcm_input == NULL,return -EINVAL);
-        snd_assert (ins->ref_snoop_scb != NULL,return -EINVAL);
+        if (snd_BUG_ON(ins->pcm_input))
+                return -EINVAL;
+        if (snd_BUG_ON(!ins->ref_snoop_scb))
+                return -EINVAL;
 
         mutex_lock(&chip->spos_mutex);
         ins->pcm_input = cs46xx_add_record_source(chip,ins->ref_snoop_scb,PCMSERIALIN_PCM_SCB_ADDR,
@@ -1795,7 +1808,8 @@ int cs46xx_dsp_disable_pcm_capture (struct snd_cs46xx *chip)
 {
         struct dsp_spos_instance * ins = chip->dsp_spos_instance;
 
-        snd_assert (ins->pcm_input != NULL,return -EINVAL);
+        if (snd_BUG_ON(!ins->pcm_input))
+                return -EINVAL;
 
         mutex_lock(&chip->spos_mutex);
         cs46xx_dsp_remove_scb (chip,ins->pcm_input);
@@ -1809,8 +1823,10 @@ int cs46xx_dsp_enable_adc_capture (struct snd_cs46xx *chip)
 {
         struct dsp_spos_instance * ins = chip->dsp_spos_instance;
 
-        snd_assert (ins->adc_input == NULL,return -EINVAL);
-        snd_assert (ins->codec_in_scb != NULL,return -EINVAL);
+        if (snd_BUG_ON(ins->adc_input))
+                return -EINVAL;
+        if (snd_BUG_ON(!ins->codec_in_scb))
+                return -EINVAL;
 
         mutex_lock(&chip->spos_mutex);
         ins->adc_input = cs46xx_add_record_source(chip,ins->codec_in_scb,PCMSERIALIN_SCB_ADDR,
@@ -1824,7 +1840,8 @@ int cs46xx_dsp_disable_adc_capture (struct snd_cs46xx *chip)
 {
         struct dsp_spos_instance * ins = chip->dsp_spos_instance;
 
-        snd_assert (ins->adc_input != NULL,return -EINVAL);
+        if (snd_BUG_ON(!ins->adc_input))
+                return -EINVAL;
 
         mutex_lock(&chip->spos_mutex);
         cs46xx_dsp_remove_scb (chip,ins->adc_input);
diff --git a/sound/pci/cs46xx/dsp_spos_scb_lib.c b/sound/pci/cs46xx/dsp_spos_scb_lib.c
index 2873cfe48c33..dd7c41b037b4 100644
--- a/sound/pci/cs46xx/dsp_spos_scb_lib.c
+++ b/sound/pci/cs46xx/dsp_spos_scb_lib.c
@@ -46,8 +46,11 @@ static void remove_symbol (struct snd_cs46xx * chip, struct dsp_symbol_entry * s
         struct dsp_spos_instance * ins = chip->dsp_spos_instance;
         int symbol_index = (int)(symbol - ins->symbol_table.symbols);
 
-        snd_assert(ins->symbol_table.nsymbols > 0,return);
-        snd_assert(symbol_index >= 0 && symbol_index < ins->symbol_table.nsymbols, return);
+        if (snd_BUG_ON(ins->symbol_table.nsymbols <= 0))
+                return;
+        if (snd_BUG_ON(symbol_index < 0 ||
+                       symbol_index >= ins->symbol_table.nsymbols))
+                return;
 
         ins->symbol_table.symbols[symbol_index].deleted = 1;
 
@@ -116,8 +119,9 @@ static void _dsp_unlink_scb (struct snd_cs46xx *chip, struct dsp_scb_descriptor
 
         if ( scb->parent_scb_ptr ) {
                 /* unlink parent SCB */
-                snd_assert ((scb->parent_scb_ptr->sub_list_ptr == scb ||
-                             scb->parent_scb_ptr->next_scb_ptr == scb),return);
+                if (snd_BUG_ON(scb->parent_scb_ptr->sub_list_ptr != scb &&
+                               scb->parent_scb_ptr->next_scb_ptr != scb))
+                        return;
   
                 if (scb->parent_scb_ptr->sub_list_ptr == scb) {
 
@@ -140,7 +144,6 @@ static void _dsp_unlink_scb (struct snd_cs46xx *chip, struct dsp_scb_descriptor
                                 scb->next_scb_ptr = ins->the_null_scb;
                         }
                 } else {
-                        /* snd_assert ( (scb->sub_list_ptr == ins->the_null_scb), return); */
                         scb->parent_scb_ptr->next_scb_ptr = scb->next_scb_ptr;
 
                         if (scb->next_scb_ptr != ins->the_null_scb) {
@@ -181,16 +184,17 @@ void cs46xx_dsp_remove_scb (struct snd_cs46xx *chip, struct dsp_scb_descriptor *
         unsigned long flags;
 
         /* check integrety */
-        snd_assert ( (scb->index >= 0 && 
-                      scb->index < ins->nscb && 
-                      (ins->scbs + scb->index) == scb), return );
+        if (snd_BUG_ON(scb->index < 0 ||
+                       scb->index >= ins->nscb ||
+                       (ins->scbs + scb->index) != scb))
+                return;
 
 #if 0
         /* can't remove a SCB with childs before 
            removing childs first  */
-        snd_assert ( (scb->sub_list_ptr == ins->the_null_scb &&
-                      scb->next_scb_ptr == ins->the_null_scb),
-                     goto _end);
+        if (snd_BUG_ON(scb->sub_list_ptr != ins->the_null_scb ||
+                       scb->next_scb_ptr != ins->the_null_scb))
+                goto _end;
 #endif
 
         spin_lock_irqsave(&scb->lock, flags);
@@ -198,7 +202,8 @@ void cs46xx_dsp_remove_scb (struct snd_cs46xx *chip, struct dsp_scb_descriptor *
         spin_unlock_irqrestore(&scb->lock, flags);
 
         cs46xx_dsp_proc_free_scb_desc(scb);
-        snd_assert (scb->scb_symbol != NULL, return );
+        if (snd_BUG_ON(!scb->scb_symbol))
+                return;
         remove_symbol (chip,scb->scb_symbol);
 
         ins->scbs[scb->index].deleted = 1;
@@ -234,7 +239,6 @@ void cs46xx_dsp_proc_free_scb_desc (struct dsp_scb_descriptor * scb)
                 snd_info_free_entry(scb->proc_info);
                 scb->proc_info = NULL;
 
-                snd_assert (scb_info != NULL, return);
                 kfree (scb_info);
         }
 }
@@ -291,7 +295,8 @@ _dsp_create_generic_scb (struct snd_cs46xx *chip, char * name, u32 * scb_data, u
   
         unsigned long flags;
 
-        snd_assert (ins->the_null_scb != NULL,return NULL);
+        if (snd_BUG_ON(!ins->the_null_scb))
+                return NULL;
 
         /* fill the data that will be wroten to DSP */
         scb_data[SCBsubListPtr] = 
@@ -321,18 +326,20 @@ _dsp_create_generic_scb (struct snd_cs46xx *chip, char * name, u32 * scb_data, u
 #endif
                 /* link to  parent SCB */
                 if (scb_child_type == SCB_ON_PARENT_NEXT_SCB) {
-                        snd_assert ( (scb->parent_scb_ptr->next_scb_ptr == ins->the_null_scb),
-                                     return NULL);
+                        if (snd_BUG_ON(scb->parent_scb_ptr->next_scb_ptr !=
+                                       ins->the_null_scb))
+                                return NULL;
 
                         scb->parent_scb_ptr->next_scb_ptr = scb;
 
                 } else if (scb_child_type == SCB_ON_PARENT_SUBLIST_SCB) {
-                        snd_assert ( (scb->parent_scb_ptr->sub_list_ptr == ins->the_null_scb),
-                                     return NULL);
+                        if (snd_BUG_ON(scb->parent_scb_ptr->sub_list_ptr !=
+                                       ins->the_null_scb))
+                                return NULL;
 
                         scb->parent_scb_ptr->sub_list_ptr = scb;
                 } else {
-                        snd_assert (0,return NULL);
+                        snd_BUG();
                 }
 
                 spin_lock_irqsave(&chip->reg_lock, flags);
@@ -675,7 +682,7 @@ cs46xx_dsp_create_src_task_scb(struct snd_cs46xx * chip, char * scb_name,
                 if (pass_through) {
                         /* wont work with any other rate than
                            the native DSP rate */
-                        snd_assert (rate == 48000);
+                        snd_BUG_ON(rate != 48000);
 
                         scb = cs46xx_dsp_create_generic_scb(chip,scb_name,(u32 *)&src_task_scb,
                                                             dest,"DMAREADER",parent_scb,
@@ -1142,7 +1149,8 @@ find_next_free_scb (struct snd_cs46xx * chip, struct dsp_scb_descriptor * from)
         struct dsp_scb_descriptor * scb = from;
 
         while (scb->next_scb_ptr != ins->the_null_scb) {
-                snd_assert (scb->next_scb_ptr != NULL, return NULL);
+                if (snd_BUG_ON(!scb->next_scb_ptr))
+                        return NULL;
 
                 scb = scb->next_scb_ptr;
         }
@@ -1246,10 +1254,11 @@ cs46xx_dsp_create_pcm_channel (struct snd_cs46xx * chip,
                 break;
         case DSP_PCM_S71_CHANNEL:
                 /* TODO */
-                snd_assert(0);
+                snd_BUG();
                 break;
         case DSP_IEC958_CHANNEL:
-                snd_assert (ins->asynch_tx_scb != NULL, return NULL);
+                if (snd_BUG_ON(!ins->asynch_tx_scb))
+                        return NULL;
                 mixer_scb = ins->asynch_tx_scb;
 
                 /* if sample rate is set to 48khz we pass
@@ -1262,7 +1271,7 @@ cs46xx_dsp_create_pcm_channel (struct snd_cs46xx * chip,
                 }
                 break;
         default:
-                snd_assert (0);
+                snd_BUG();
                 return NULL;
         }
         /* default sample rate is 44100 */
@@ -1308,7 +1317,8 @@ cs46xx_dsp_create_pcm_channel (struct snd_cs46xx * chip,
                                 break;
                         }
                 }
-                snd_assert (src_index != -1,return NULL);
+                if (snd_BUG_ON(src_index == -1))
+                        return NULL;
 
                 /* we need to create a new SRC SCB */
                 if (mixer_scb->sub_list_ptr == ins->the_null_scb) {
@@ -1462,9 +1472,10 @@ void cs46xx_dsp_destroy_pcm_channel (struct snd_cs46xx * chip,
         struct dsp_spos_instance * ins = chip->dsp_spos_instance;
         unsigned long flags;
 
-        snd_assert(pcm_channel->active, return );
-        snd_assert(ins->npcm_channels > 0, return );
-        snd_assert(pcm_channel->src_scb->ref_count > 0, return );
+        if (snd_BUG_ON(!pcm_channel->active ||
+                       ins->npcm_channels <= 0 ||
+                       pcm_channel->src_scb->ref_count <= 0))
+                return;
 
         spin_lock_irqsave(&chip->reg_lock, flags);
         pcm_channel->unlinked = 1;
@@ -1479,8 +1490,9 @@ void cs46xx_dsp_destroy_pcm_channel (struct snd_cs46xx * chip,
         if (!pcm_channel->src_scb->ref_count) {
                 cs46xx_dsp_remove_scb(chip,pcm_channel->src_scb);
 
-                snd_assert (pcm_channel->src_slot >= 0 && pcm_channel->src_slot < DSP_MAX_SRC_NR,
-                            return );
+                if (snd_BUG_ON(pcm_channel->src_slot < 0 ||
+                               pcm_channel->src_slot >= DSP_MAX_SRC_NR))
+                        return;
 
                 ins->src_scb_slots[pcm_channel->src_slot] = 0;
                 ins->nsrc_scb --;
@@ -1490,11 +1502,11 @@ void cs46xx_dsp_destroy_pcm_channel (struct snd_cs46xx * chip,
 int cs46xx_dsp_pcm_unlink (struct snd_cs46xx * chip,
                            struct dsp_pcm_channel_descriptor * pcm_channel)
 {
-        struct dsp_spos_instance * ins = chip->dsp_spos_instance;
         unsigned long flags;
 
-        snd_assert(pcm_channel->active,return -EIO);
-        snd_assert(ins->npcm_channels > 0,return -EIO);
+        if (snd_BUG_ON(!pcm_channel->active ||
+                       chip->dsp_spos_instance->npcm_channels <= 0))
+                return -EIO;
 
         spin_lock(&pcm_channel->src_scb->lock);
 
@@ -1537,7 +1549,7 @@ int cs46xx_dsp_pcm_link (struct snd_cs46xx * chip,
 
         src_scb->sub_list_ptr = pcm_channel->pcm_reader_scb;
 
-        snd_assert (pcm_channel->pcm_reader_scb->parent_scb_ptr == NULL, ; );
+        snd_BUG_ON(pcm_channel->pcm_reader_scb->parent_scb_ptr);
         pcm_channel->pcm_reader_scb->parent_scb_ptr = parent_scb;
 
         spin_lock_irqsave(&chip->reg_lock, flags);
@@ -1564,7 +1576,8 @@ cs46xx_add_record_source (struct snd_cs46xx *chip, struct dsp_scb_descriptor * s
         struct dsp_scb_descriptor * pcm_input;
         int insert_point;
 
-        snd_assert (ins->record_mixer_scb != NULL,return NULL);
+        if (snd_BUG_ON(!ins->record_mixer_scb))
+                return NULL;
 
         if (ins->record_mixer_scb->sub_list_ptr != ins->the_null_scb) {
                 parent = find_next_free_scb (chip,ins->record_mixer_scb->sub_list_ptr);
@@ -1583,7 +1596,8 @@ cs46xx_add_record_source (struct snd_cs46xx *chip, struct dsp_scb_descriptor * s
 
 int cs46xx_src_unlink(struct snd_cs46xx *chip, struct dsp_scb_descriptor * src)
 {
-        snd_assert (src->parent_scb_ptr != NULL,  return -EINVAL );
+        if (snd_BUG_ON(!src->parent_scb_ptr))
+                return -EINVAL;
 
         /* mute SCB */
         cs46xx_dsp_scb_set_volume (chip,src,0,0);
@@ -1598,8 +1612,10 @@ int cs46xx_src_link(struct snd_cs46xx *chip, struct dsp_scb_descriptor * src)
         struct dsp_spos_instance * ins = chip->dsp_spos_instance;
         struct dsp_scb_descriptor * parent_scb;
 
-        snd_assert (src->parent_scb_ptr == NULL,   return -EINVAL );
-        snd_assert(ins->master_mix_scb !=NULL,   return -EINVAL );
+        if (snd_BUG_ON(src->parent_scb_ptr))
+                return -EINVAL;
+        if (snd_BUG_ON(!ins->master_mix_scb))
+                return -EINVAL;
 
         if (ins->master_mix_scb->sub_list_ptr != ins->the_null_scb) {
                 parent_scb = find_next_free_scb (chip,ins->master_mix_scb->sub_list_ptr);
@@ -1635,8 +1651,11 @@ int cs46xx_dsp_enable_spdif_out (struct snd_cs46xx *chip)
                 return -EBUSY;
         }
 
-        snd_assert (ins->asynch_tx_scb == NULL, return -EINVAL);
-        snd_assert (ins->master_mix_scb->next_scb_ptr == ins->the_null_scb, return -EINVAL);
+        if (snd_BUG_ON(ins->asynch_tx_scb))
+                return -EINVAL;
+        if (snd_BUG_ON(ins->master_mix_scb->next_scb_ptr !=
+                       ins->the_null_scb))
+                return -EINVAL;
 
         /* reset output snooper sample buffer pointer */
         snd_cs46xx_poke (chip, (ins->ref_snoop_scb->address + 2) << 2,
@@ -1676,10 +1695,15 @@ int  cs46xx_dsp_disable_spdif_out (struct snd_cs46xx *chip)
         }
 
         /* check integrety */
-        snd_assert (ins->asynch_tx_scb != NULL, return -EINVAL);
-        snd_assert (ins->spdif_pcm_input_scb != NULL,return -EINVAL);
-        snd_assert (ins->master_mix_scb->next_scb_ptr == ins->asynch_tx_scb, return -EINVAL);
-        snd_assert (ins->asynch_tx_scb->parent_scb_ptr == ins->master_mix_scb, return -EINVAL);
+        if (snd_BUG_ON(!ins->asynch_tx_scb))
+                return -EINVAL;
+        if (snd_BUG_ON(!ins->spdif_pcm_input_scb))
+                return -EINVAL;
+        if (snd_BUG_ON(ins->master_mix_scb->next_scb_ptr != ins->asynch_tx_scb))
+                return -EINVAL;
+        if (snd_BUG_ON(ins->asynch_tx_scb->parent_scb_ptr !=
+                       ins->master_mix_scb))
+                return -EINVAL;
 
         cs46xx_dsp_remove_scb (chip,ins->spdif_pcm_input_scb);
         cs46xx_dsp_remove_scb (chip,ins->asynch_tx_scb);
@@ -1734,7 +1758,8 @@ int cs46xx_iec958_post_close (struct snd_cs46xx *chip)
 {
         struct dsp_spos_instance * ins = chip->dsp_spos_instance;
 
-        snd_assert (ins->asynch_tx_scb != NULL, return -EINVAL);
+        if (snd_BUG_ON(!ins->asynch_tx_scb))
+                return -EINVAL;
 
         ins->spdif_status_out  &= ~DSP_SPDIF_STATUS_PLAYBACK_OPEN;