PCI Trident 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/pci/trident/trident.c | 41 +++++++++------- sound/pci/trident/trident_main.c | 84 ++++++++++++++++++++++---------- 2 files changed, 81 insertions(+), 44 deletions(-)
diff --git a/sound/pci/trident/trident.c b/sound/pci/trident/trident.c index a51041205f7c..60e4dca28c2b 100644 --- a/sound/pci/trident/trident.c +++ b/sound/pci/trident/trident.c @@ -67,11 +67,12 @@ static int snd_trident_probe(struct pci_dev *pci, if (err < 0) return err;
- if ((err = snd_trident_create(card, pci, - pcm_channels[dev], - ((pci->vendor << 16) | pci->device) == TRIDENT_DEVICE_ID_SI7018 ? 1 : 2, - wavetable_size[dev], - &trident)) < 0) { + err = snd_trident_create(card, pci, + pcm_channels[dev], + ((pci->vendor << 16) | pci->device) == TRIDENT_DEVICE_ID_SI7018 ? 1 : 2, + wavetable_size[dev], + &trident); + if (err < 0) { snd_card_free(card); return err; } @@ -100,38 +101,44 @@ static int snd_trident_probe(struct pci_dev *pci, sprintf(card->longname, "%s PCI Audio at 0x%lx, irq %d", card->shortname, trident->port, trident->irq);
- if ((err = snd_trident_pcm(trident, pcm_dev++)) < 0) { + err = snd_trident_pcm(trident, pcm_dev++); + if (err < 0) { snd_card_free(card); return err; } switch (trident->device) { case TRIDENT_DEVICE_ID_DX: case TRIDENT_DEVICE_ID_NX: - if ((err = snd_trident_foldback_pcm(trident, pcm_dev++)) < 0) { + err = snd_trident_foldback_pcm(trident, pcm_dev++); + if (err < 0) { snd_card_free(card); return err; } break; } if (trident->device == TRIDENT_DEVICE_ID_NX || trident->device == TRIDENT_DEVICE_ID_SI7018) { - if ((err = snd_trident_spdif_pcm(trident, pcm_dev++)) < 0) { + err = snd_trident_spdif_pcm(trident, pcm_dev++); + if (err < 0) { snd_card_free(card); return err; } } - if (trident->device != TRIDENT_DEVICE_ID_SI7018 && - (err = snd_mpu401_uart_new(card, 0, MPU401_HW_TRID4DWAVE, - trident->midi_port, - MPU401_INFO_INTEGRATED | - MPU401_INFO_IRQ_HOOK, - -1, &trident->rmidi)) < 0) { - snd_card_free(card); - return err; + if (trident->device != TRIDENT_DEVICE_ID_SI7018) { + err = snd_mpu401_uart_new(card, 0, MPU401_HW_TRID4DWAVE, + trident->midi_port, + MPU401_INFO_INTEGRATED | + MPU401_INFO_IRQ_HOOK, + -1, &trident->rmidi); + if (err < 0) { + snd_card_free(card); + return err; + } }
snd_trident_create_gameport(trident);
- if ((err = snd_card_register(card)) < 0) { + err = snd_card_register(card); + if (err < 0) { snd_card_free(card); return err; } diff --git a/sound/pci/trident/trident_main.c b/sound/pci/trident/trident_main.c index 20145143f6a6..281ea7143b1c 100644 --- a/sound/pci/trident/trident_main.c +++ b/sound/pci/trident/trident_main.c @@ -2119,7 +2119,8 @@ int snd_trident_pcm(struct snd_trident *trident, int device) struct snd_pcm *pcm; int err;
- if ((err = snd_pcm_new(trident->card, "trident_dx_nx", device, trident->ChanPCM, 1, &pcm)) < 0) + err = snd_pcm_new(trident->card, "trident_dx_nx", device, trident->ChanPCM, 1, &pcm); + if (err < 0) return err;
pcm->private_data = trident; @@ -2178,7 +2179,8 @@ int snd_trident_foldback_pcm(struct snd_trident *trident, int device)
if (trident->device == TRIDENT_DEVICE_ID_NX) num_chan = 4; - if ((err = snd_pcm_new(trident->card, "trident_dx_nx", device, 0, num_chan, &foldback)) < 0) + err = snd_pcm_new(trident->card, "trident_dx_nx", device, 0, num_chan, &foldback); + if (err < 0) return err;
foldback->private_data = trident; @@ -2228,7 +2230,8 @@ int snd_trident_spdif_pcm(struct snd_trident *trident, int device) struct snd_pcm *spdif; int err;
- if ((err = snd_pcm_new(trident->card, "trident_dx_nx IEC958", device, 1, 0, &spdif)) < 0) + err = snd_pcm_new(trident->card, "trident_dx_nx IEC958", device, 1, 0, &spdif); + if (err < 0) return err;
spdif->private_data = trident; @@ -2921,7 +2924,8 @@ static int snd_trident_mixer(struct snd_trident *trident, int pcm_spdif_device) if (!uctl) return -ENOMEM;
- if ((err = snd_ac97_bus(trident->card, 0, &ops, NULL, &trident->ac97_bus)) < 0) + err = snd_ac97_bus(trident->card, 0, &ops, NULL, &trident->ac97_bus); + if (err < 0) goto __out;
memset(&_ac97, 0, sizeof(_ac97)); @@ -2929,9 +2933,11 @@ static int snd_trident_mixer(struct snd_trident *trident, int pcm_spdif_device) trident->ac97_detect = 1;
__again: - if ((err = snd_ac97_mixer(trident->ac97_bus, &_ac97, &trident->ac97)) < 0) { + err = snd_ac97_mixer(trident->ac97_bus, &_ac97, &trident->ac97); + if (err < 0) { if (trident->device == TRIDENT_DEVICE_ID_SI7018) { - if ((err = snd_trident_sis_reset(trident)) < 0) + err = snd_trident_sis_reset(trident); + if (err < 0) goto __out; if (retries-- > 0) goto __again; @@ -2962,10 +2968,14 @@ static int snd_trident_mixer(struct snd_trident *trident, int pcm_spdif_device) trident->ac97_detect = 0;
if (trident->device != TRIDENT_DEVICE_ID_SI7018) { - if ((err = snd_ctl_add(card, kctl = snd_ctl_new1(&snd_trident_vol_wave_control, trident))) < 0) + kctl = snd_ctl_new1(&snd_trident_vol_wave_control, trident); + err = snd_ctl_add(card, kctl); + if (err < 0) goto __out; kctl->put(kctl, uctl); - if ((err = snd_ctl_add(card, kctl = snd_ctl_new1(&snd_trident_vol_music_control, trident))) < 0) + kctl = snd_ctl_new1(&snd_trident_vol_music_control, trident); + err = snd_ctl_add(card, kctl); + if (err < 0) goto __out; kctl->put(kctl, uctl); outl(trident->musicvol_wavevol = 0x00000000, TRID_REG(trident, T4D_MUSICVOL_WAVEVOL)); @@ -2979,28 +2989,38 @@ static int snd_trident_mixer(struct snd_trident *trident, int pcm_spdif_device) tmix = &trident->pcm_mixer[idx]; tmix->voice = NULL; } - if ((trident->ctl_vol = snd_ctl_new1(&snd_trident_pcm_vol_control, trident)) == NULL) + trident->ctl_vol = snd_ctl_new1(&snd_trident_pcm_vol_control, trident); + if (!trident->ctl_vol) goto __nomem; - if ((err = snd_ctl_add(card, trident->ctl_vol))) + err = snd_ctl_add(card, trident->ctl_vol); + if (err) goto __out; - if ((trident->ctl_pan = snd_ctl_new1(&snd_trident_pcm_pan_control, trident)) == NULL) + trident->ctl_pan = snd_ctl_new1(&snd_trident_pcm_pan_control, trident); + if (!trident->ctl_pan) goto __nomem; - if ((err = snd_ctl_add(card, trident->ctl_pan))) + err = snd_ctl_add(card, trident->ctl_pan); + if (err) goto __out;
- if ((trident->ctl_rvol = snd_ctl_new1(&snd_trident_pcm_rvol_control, trident)) == NULL) + trident->ctl_rvol = snd_ctl_new1(&snd_trident_pcm_rvol_control, trident); + if (!trident->ctl_rvol) goto __nomem; - if ((err = snd_ctl_add(card, trident->ctl_rvol))) + err = snd_ctl_add(card, trident->ctl_rvol); + if (err) goto __out;
- if ((trident->ctl_cvol = snd_ctl_new1(&snd_trident_pcm_cvol_control, trident)) == NULL) + trident->ctl_cvol = snd_ctl_new1(&snd_trident_pcm_cvol_control, trident); + if (!trident->ctl_cvol) goto __nomem; - if ((err = snd_ctl_add(card, trident->ctl_cvol))) + err = snd_ctl_add(card, trident->ctl_cvol); + if (err) goto __out;
if (trident->device == TRIDENT_DEVICE_ID_NX) { - if ((err = snd_ctl_add(card, kctl = snd_ctl_new1(&snd_trident_ac97_rear_control, trident))) < 0) + kctl = snd_ctl_new1(&snd_trident_ac97_rear_control, trident); + err = snd_ctl_add(card, kctl); + if (err < 0) goto __out; kctl->put(kctl, uctl); } @@ -3016,7 +3036,8 @@ static int snd_trident_mixer(struct snd_trident *trident, int pcm_spdif_device) if (trident->ac97_sec && (trident->ac97_sec->ext_id & AC97_EI_SPDIF)) kctl->id.index++; idx = kctl->id.index; - if ((err = snd_ctl_add(card, kctl)) < 0) + err = snd_ctl_add(card, kctl); + if (err < 0) goto __out; kctl->put(kctl, uctl);
@@ -3027,7 +3048,8 @@ static int snd_trident_mixer(struct snd_trident *trident, int pcm_spdif_device) } kctl->id.index = idx; kctl->id.device = pcm_spdif_device; - if ((err = snd_ctl_add(card, kctl)) < 0) + err = snd_ctl_add(card, kctl); + if (err < 0) goto __out;
kctl = snd_ctl_new1(&snd_trident_spdif_mask, trident); @@ -3037,7 +3059,8 @@ static int snd_trident_mixer(struct snd_trident *trident, int pcm_spdif_device) } kctl->id.index = idx; kctl->id.device = pcm_spdif_device; - if ((err = snd_ctl_add(card, kctl)) < 0) + err = snd_ctl_add(card, kctl); + if (err < 0) goto __out;
kctl = snd_ctl_new1(&snd_trident_spdif_stream, trident); @@ -3047,7 +3070,8 @@ static int snd_trident_mixer(struct snd_trident *trident, int pcm_spdif_device) } kctl->id.index = idx; kctl->id.device = pcm_spdif_device; - if ((err = snd_ctl_add(card, kctl)) < 0) + err = snd_ctl_add(card, kctl); + if (err < 0) goto __out; trident->spdif_pcm_ctl = kctl; } @@ -3449,7 +3473,8 @@ static int snd_trident_sis_init(struct snd_trident *trident) { int err;
- if ((err = snd_trident_sis_reset(trident)) < 0) + err = snd_trident_sis_reset(trident); + if (err < 0) return err;
snd_trident_stop_all_voices(trident); @@ -3494,7 +3519,8 @@ int snd_trident_create(struct snd_card *card, *rtrident = NULL;
/* enable PCI device */ - if ((err = pci_enable_device(pci)) < 0) + err = pci_enable_device(pci); + if (err < 0) return err; /* check, if we can restrict PCI DMA transfers to 30 bits */ if (dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(30))) { @@ -3528,7 +3554,8 @@ int snd_trident_create(struct snd_card *card, trident->midi_port = TRID_REG(trident, T4D_MPU401_BASE); pci_set_master(pci);
- if ((err = pci_request_regions(pci, "Trident Audio")) < 0) { + err = pci_request_regions(pci, "Trident Audio"); + if (err < 0) { kfree(trident); pci_disable_device(pci); return err; @@ -3548,7 +3575,8 @@ int snd_trident_create(struct snd_card *card, trident->tlb.entries = NULL; trident->tlb.buffer.area = NULL; if (trident->device == TRIDENT_DEVICE_ID_NX) { - if ((err = snd_trident_tlb_alloc(trident)) < 0) { + err = snd_trident_tlb_alloc(trident); + if (err < 0) { snd_trident_free(trident); return err; } @@ -3576,12 +3604,14 @@ int snd_trident_create(struct snd_card *card, return err; }
- if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, trident, &ops)) < 0) { + err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, trident, &ops); + if (err < 0) { snd_trident_free(trident); return err; }
- if ((err = snd_trident_mixer(trident, pcm_spdif_device)) < 0) + err = snd_trident_mixer(trident, pcm_spdif_device); + if (err < 0) return err; /* initialise synth voices */