EMUx synth driver code contains lots of assignments in if condition, which is a bad coding style that may confuse readers and occasionally lead to bugs.
This patch is merely for coding-style fixes, no functional changes.
Signed-off-by: Takashi Iwai tiwai@suse.de --- sound/synth/emux/emux.c | 3 ++- sound/synth/emux/emux_effect.c | 13 ++++++++--- sound/synth/emux/emux_hwdep.c | 6 +++-- sound/synth/emux/soundfont.c | 40 ++++++++++++++++++++++------------ 4 files changed, 42 insertions(+), 20 deletions(-)
diff --git a/sound/synth/emux/emux.c b/sound/synth/emux/emux.c index f65e6c7b139f..49d1976a132c 100644 --- a/sound/synth/emux/emux.c +++ b/sound/synth/emux/emux.c @@ -104,7 +104,8 @@ int snd_emux_register(struct snd_emux *emu, struct snd_card *card, int index, ch if (emu->sflist == NULL) return -ENOMEM;
- if ((err = snd_emux_init_hwdep(emu)) < 0) + err = snd_emux_init_hwdep(emu); + if (err < 0) return err;
snd_emux_init_voices(emu); diff --git a/sound/synth/emux/emux_effect.c b/sound/synth/emux/emux_effect.c index afd119b11f39..3c7314f5fb19 100644 --- a/sound/synth/emux/emux_effect.c +++ b/sound/synth/emux/emux_effect.c @@ -181,7 +181,10 @@ snd_emux_send_effect(struct snd_emux_port *port, struct snd_midi_channel *chan, fx->flag[type] = mode;
/* do we need to modify the register in realtime ? */ - if (! parm_defs[type].update || (offset = parm_defs[type].offset) < 0) + if (!parm_defs[type].update) + return; + offset = parm_defs[type].offset; + if (offset < 0) return;
#ifdef SNDRV_LITTLE_ENDIAN @@ -223,13 +226,17 @@ snd_emux_setup_effect(struct snd_emux_voice *vp) unsigned char *srcp; int i;
- if (! (fx = chan->private)) + fx = chan->private; + if (!fx) return;
/* modify the register values via effect table */ for (i = 0; i < EMUX_FX_END; i++) { int offset; - if (! fx->flag[i] || (offset = parm_defs[i].offset) < 0) + if (!fx->flag[i]) + continue; + offset = parm_defs[i].offset; + if (offset < 0) continue; #ifdef SNDRV_LITTLE_ENDIAN if (parm_defs[i].type & PARM_IS_ALIGN_HI) diff --git a/sound/synth/emux/emux_hwdep.c b/sound/synth/emux/emux_hwdep.c index 8a965e2f160a..81719bfb8ed7 100644 --- a/sound/synth/emux/emux_hwdep.c +++ b/sound/synth/emux/emux_hwdep.c @@ -116,7 +116,8 @@ snd_emux_init_hwdep(struct snd_emux *emu) struct snd_hwdep *hw; int err;
- if ((err = snd_hwdep_new(emu->card, SNDRV_EMUX_HWDEP_NAME, emu->hwdep_idx, &hw)) < 0) + err = snd_hwdep_new(emu->card, SNDRV_EMUX_HWDEP_NAME, emu->hwdep_idx, &hw); + if (err < 0) return err; emu->hwdep = hw; strcpy(hw->name, SNDRV_EMUX_HWDEP_NAME); @@ -127,7 +128,8 @@ snd_emux_init_hwdep(struct snd_emux *emu) hw->ops.ioctl_compat = snd_emux_hwdep_ioctl; hw->exclusive = 1; hw->private_data = emu; - if ((err = snd_card_register(emu->card)) < 0) + err = snd_card_register(emu->card); + if (err < 0) return err;
return 0; diff --git a/sound/synth/emux/soundfont.c b/sound/synth/emux/soundfont.c index 9ebc711afa6b..da3cf8912463 100644 --- a/sound/synth/emux/soundfont.c +++ b/sound/synth/emux/soundfont.c @@ -349,7 +349,8 @@ sf_zone_new(struct snd_sf_list *sflist, struct snd_soundfont *sf) { struct snd_sf_zone *zp;
- if ((zp = kzalloc(sizeof(*zp), GFP_KERNEL)) == NULL) + zp = kzalloc(sizeof(*zp), GFP_KERNEL); + if (!zp) return NULL; zp->next = sf->zones; sf->zones = zp; @@ -381,7 +382,8 @@ sf_sample_new(struct snd_sf_list *sflist, struct snd_soundfont *sf) { struct snd_sf_sample *sp;
- if ((sp = kzalloc(sizeof(*sp), GFP_KERNEL)) == NULL) + sp = kzalloc(sizeof(*sp), GFP_KERNEL); + if (!sp) return NULL;
sp->next = sf->samples; @@ -451,7 +453,8 @@ load_map(struct snd_sf_list *sflist, const void __user *data, int count) }
/* create a new zone */ - if ((zp = sf_zone_new(sflist, sf)) == NULL) + zp = sf_zone_new(sflist, sf); + if (!zp) return -ENOMEM;
zp->bank = map.map_bank; @@ -514,7 +517,8 @@ load_info(struct snd_sf_list *sflist, const void __user *data, long count) int i;
/* patch must be opened */ - if ((sf = sflist->currsf) == NULL) + sf = sflist->currsf; + if (!sf) return -EINVAL;
if (is_special_type(sf->type)) @@ -579,9 +583,9 @@ load_info(struct snd_sf_list *sflist, const void __user *data, long count) init_voice_parm(&tmpzone.v.parm);
/* create a new zone */ - if ((zone = sf_zone_new(sflist, sf)) == NULL) { + zone = sf_zone_new(sflist, sf); + if (!zone) return -ENOMEM; - }
/* copy the temporary data */ zone->bank = tmpzone.bank; @@ -700,7 +704,8 @@ load_data(struct snd_sf_list *sflist, const void __user *data, long count) long off;
/* patch must be opened */ - if ((sf = sflist->currsf) == NULL) + sf = sflist->currsf; + if (!sf) return -EINVAL;
if (is_special_type(sf->type)) @@ -723,7 +728,8 @@ load_data(struct snd_sf_list *sflist, const void __user *data, long count) }
/* Allocate a new sample structure */ - if ((sp = sf_sample_new(sflist, sf)) == NULL) + sp = sf_sample_new(sflist, sf); + if (!sp) return -ENOMEM;
sp->v = sample_info; @@ -958,7 +964,8 @@ load_guspatch(struct snd_sf_list *sflist, const char __user *data, sf = newsf(sflist, SNDRV_SFNT_PAT_TYPE_GUS|SNDRV_SFNT_PAT_SHARED, NULL); if (sf == NULL) return -ENOMEM; - if ((smp = sf_sample_new(sflist, sf)) == NULL) + smp = sf_sample_new(sflist, sf); + if (!smp) return -ENOMEM; sample_id = sflist->sample_counter; smp->v.sample = sample_id; @@ -996,7 +1003,8 @@ load_guspatch(struct snd_sf_list *sflist, const char __user *data, smp->v.sf_id = sf->id;
/* set up voice info */ - if ((zone = sf_zone_new(sflist, sf)) == NULL) { + zone = sf_zone_new(sflist, sf); + if (!zone) { sf_sample_delete(sflist, sf, smp); return -ENOMEM; } @@ -1181,7 +1189,8 @@ add_preset(struct snd_sf_list *sflist, struct snd_sf_zone *cur) }
/* prepend this zone */ - if ((index = get_index(cur->bank, cur->instr, cur->v.low)) < 0) + index = get_index(cur->bank, cur->instr, cur->v.low); + if (index < 0) return; cur->next_zone = zone; /* zone link */ cur->next_instr = sflist->presets[index]; /* preset table link */ @@ -1197,7 +1206,8 @@ delete_preset(struct snd_sf_list *sflist, struct snd_sf_zone *zp) int index; struct snd_sf_zone *p;
- if ((index = get_index(zp->bank, zp->instr, zp->v.low)) < 0) + index = get_index(zp->bank, zp->instr, zp->v.low); + if (index < 0) return; for (p = sflist->presets[index]; p; p = p->next_instr) { while (p->next_instr == zp) { @@ -1257,7 +1267,8 @@ search_first_zone(struct snd_sf_list *sflist, int bank, int preset, int key) int index; struct snd_sf_zone *zp;
- if ((index = get_index(bank, preset, key)) < 0) + index = get_index(bank, preset, key); + if (index < 0) return NULL; for (zp = sflist->presets[index]; zp; zp = zp->next_instr) { if (zp->instr == preset && zp->bank == bank) @@ -1386,7 +1397,8 @@ snd_sf_new(struct snd_sf_callback *callback, struct snd_util_memhdr *hdr) { struct snd_sf_list *sflist;
- if ((sflist = kzalloc(sizeof(*sflist), GFP_KERNEL)) == NULL) + sflist = kzalloc(sizeof(*sflist), GFP_KERNEL); + if (!sflist) return NULL;
mutex_init(&sflist->presets_mutex);