PCI CS46xx driver code contains a few 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/cs46xx/cs46xx.c | 31 +++++++++++++-------- sound/pci/cs46xx/cs46xx_lib.c | 51 ++++++++++++++++++++++------------- sound/pci/cs46xx/dsp_spos.c | 3 ++- 3 files changed, 55 insertions(+), 30 deletions(-)
diff --git a/sound/pci/cs46xx/cs46xx.c b/sound/pci/cs46xx/cs46xx.c index 1db7b4112840..358ca84cbdea 100644 --- a/sound/pci/cs46xx/cs46xx.c +++ b/sound/pci/cs46xx/cs46xx.c @@ -70,45 +70,53 @@ static int snd_card_cs46xx_probe(struct pci_dev *pci, 0, &card); if (err < 0) return err; - if ((err = snd_cs46xx_create(card, pci, - external_amp[dev], thinkpad[dev], - &chip)) < 0) { + err = snd_cs46xx_create(card, pci, + external_amp[dev], thinkpad[dev], + &chip); + if (err < 0) { snd_card_free(card); return err; } card->private_data = chip; chip->accept_valid = mmap_valid[dev]; - if ((err = snd_cs46xx_pcm(chip, 0)) < 0) { + err = snd_cs46xx_pcm(chip, 0); + if (err < 0) { snd_card_free(card); return err; } #ifdef CONFIG_SND_CS46XX_NEW_DSP - if ((err = snd_cs46xx_pcm_rear(chip, 1)) < 0) { + err = snd_cs46xx_pcm_rear(chip, 1); + if (err < 0) { snd_card_free(card); return err; } - if ((err = snd_cs46xx_pcm_iec958(chip, 2)) < 0) { + err = snd_cs46xx_pcm_iec958(chip, 2); + if (err < 0) { snd_card_free(card); return err; } #endif - if ((err = snd_cs46xx_mixer(chip, 2)) < 0) { + err = snd_cs46xx_mixer(chip, 2); + if (err < 0) { snd_card_free(card); return err; } #ifdef CONFIG_SND_CS46XX_NEW_DSP if (chip->nr_ac97_codecs ==2) { - if ((err = snd_cs46xx_pcm_center_lfe(chip, 3)) < 0) { + err = snd_cs46xx_pcm_center_lfe(chip, 3); + if (err < 0) { snd_card_free(card); return err; } } #endif - if ((err = snd_cs46xx_midi(chip, 0)) < 0) { + err = snd_cs46xx_midi(chip, 0); + if (err < 0) { snd_card_free(card); return err; } - if ((err = snd_cs46xx_start_dsp(chip)) < 0) { + err = snd_cs46xx_start_dsp(chip); + if (err < 0) { snd_card_free(card); return err; } @@ -124,7 +132,8 @@ static int snd_card_cs46xx_probe(struct pci_dev *pci, chip->ba1_addr, chip->irq);
- 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/cs46xx/cs46xx_lib.c b/sound/pci/cs46xx/cs46xx_lib.c index 37f516e6a5c2..1e1eb17f8e07 100644 --- a/sound/pci/cs46xx/cs46xx_lib.c +++ b/sound/pci/cs46xx/cs46xx_lib.c @@ -1058,9 +1058,10 @@ static int _cs46xx_adjust_sample_rate (struct snd_cs46xx *chip, struct snd_cs46x int unlinked = cpcm->pcm_channel->unlinked; cs46xx_dsp_destroy_pcm_channel (chip,cpcm->pcm_channel);
- if ( (cpcm->pcm_channel = cs46xx_dsp_create_pcm_channel (chip, sample_rate, cpcm, - cpcm->hw_buf.addr, - cpcm->pcm_channel_id)) == NULL) { + cpcm->pcm_channel = cs46xx_dsp_create_pcm_channel(chip, sample_rate, cpcm, + cpcm->hw_buf.addr, + cpcm->pcm_channel_id); + if (!cpcm->pcm_channel) { dev_err(chip->card->dev, "failed to re-create virtual PCM channel\n"); return -ENOMEM; @@ -1147,7 +1148,8 @@ static int snd_cs46xx_playback_hw_params(struct snd_pcm_substream *substream, runtime->dma_addr = 0; runtime->dma_bytes = 0; } - if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0) { + err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params)); + if (err < 0) { #ifdef CONFIG_SND_CS46XX_NEW_DSP mutex_unlock(&chip->spos_mutex); #endif @@ -1295,7 +1297,8 @@ static int snd_cs46xx_capture_hw_params(struct snd_pcm_substream *substream, runtime->dma_addr = 0; runtime->dma_bytes = 0; } - if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0) + err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params)); + if (err < 0) return err; substream->ops = &snd_cs46xx_capture_indirect_ops; } @@ -1760,7 +1763,8 @@ int snd_cs46xx_pcm(struct snd_cs46xx *chip, int device) struct snd_pcm *pcm; int err;
- if ((err = snd_pcm_new(chip->card, "CS46xx", device, MAX_PLAYBACK_CHANNELS, 1, &pcm)) < 0) + err = snd_pcm_new(chip->card, "CS46xx", device, MAX_PLAYBACK_CHANNELS, 1, &pcm); + if (err < 0) return err;
pcm->private_data = chip; @@ -1787,7 +1791,8 @@ int snd_cs46xx_pcm_rear(struct snd_cs46xx *chip, int device) struct snd_pcm *pcm; int err;
- if ((err = snd_pcm_new(chip->card, "CS46xx - Rear", device, MAX_PLAYBACK_CHANNELS, 0, &pcm)) < 0) + err = snd_pcm_new(chip->card, "CS46xx - Rear", device, MAX_PLAYBACK_CHANNELS, 0, &pcm); + if (err < 0) return err;
pcm->private_data = chip; @@ -1811,7 +1816,8 @@ int snd_cs46xx_pcm_center_lfe(struct snd_cs46xx *chip, int device) struct snd_pcm *pcm; int err;
- if ((err = snd_pcm_new(chip->card, "CS46xx - Center LFE", device, MAX_PLAYBACK_CHANNELS, 0, &pcm)) < 0) + err = snd_pcm_new(chip->card, "CS46xx - Center LFE", device, MAX_PLAYBACK_CHANNELS, 0, &pcm); + if (err < 0) return err;
pcm->private_data = chip; @@ -1835,7 +1841,8 @@ int snd_cs46xx_pcm_iec958(struct snd_cs46xx *chip, int device) struct snd_pcm *pcm; int err;
- if ((err = snd_pcm_new(chip->card, "CS46xx - IEC958", device, 1, 0, &pcm)) < 0) + err = snd_pcm_new(chip->card, "CS46xx - IEC958", device, 1, 0, &pcm); + if (err < 0) return err;
pcm->private_data = chip; @@ -2414,7 +2421,8 @@ static void snd_cs46xx_codec_reset (struct snd_ac97 * ac97)
/* test if we can write to the record gain volume register */ snd_ac97_write(ac97, AC97_REC_GAIN, 0x8a05); - if ((err = snd_ac97_read(ac97, AC97_REC_GAIN)) == 0x8a05) + err = snd_ac97_read(ac97, AC97_REC_GAIN); + if (err == 0x8a05) return;
msleep(10); @@ -2476,7 +2484,8 @@ int snd_cs46xx_mixer(struct snd_cs46xx *chip, int spdif_device) /* detect primary codec */ chip->nr_ac97_codecs = 0; dev_dbg(chip->card->dev, "detecting primary codec\n"); - if ((err = snd_ac97_bus(card, 0, &ops, chip, &chip->ac97_bus)) < 0) + err = snd_ac97_bus(card, 0, &ops, chip, &chip->ac97_bus); + if (err < 0) return err; chip->ac97_bus->private_free = snd_cs46xx_mixer_free_ac97_bus;
@@ -2497,7 +2506,8 @@ int snd_cs46xx_mixer(struct snd_cs46xx *chip, int spdif_device) kctl = snd_ctl_new1(&snd_cs46xx_controls[idx], chip); if (kctl && kctl->id.iface == SNDRV_CTL_ELEM_IFACE_PCM) kctl->id.device = spdif_device; - if ((err = snd_ctl_add(card, kctl)) < 0) + err = snd_ctl_add(card, kctl); + if (err < 0) return err; }
@@ -2684,7 +2694,8 @@ int snd_cs46xx_midi(struct snd_cs46xx *chip, int device) struct snd_rawmidi *rmidi; int err;
- if ((err = snd_rawmidi_new(chip->card, "CS46XX", device, 1, 1, &rmidi)) < 0) + err = snd_rawmidi_new(chip->card, "CS46XX", device, 1, 1, &rmidi); + if (err < 0) return err; strcpy(rmidi->name, "CS46XX"); snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, &snd_cs46xx_midi_output); @@ -3526,7 +3537,8 @@ static void hercules_mixer_init (struct snd_cs46xx *chip) struct snd_kcontrol *kctl;
kctl = snd_ctl_new1(&snd_hercules_controls[idx], chip); - if ((err = snd_ctl_add(card, kctl)) < 0) { + err = snd_ctl_add(card, kctl); + if (err < 0) { dev_err(card->dev, "failed to initialize Hercules mixer (%d)\n", err); @@ -3871,7 +3883,8 @@ int snd_cs46xx_create(struct snd_card *card, *rchip = NULL;
/* enable PCI device */ - if ((err = pci_enable_device(pci)) < 0) + err = pci_enable_device(pci); + if (err < 0) return err;
chip = kzalloc(sizeof(*chip), GFP_KERNEL); @@ -3965,8 +3978,9 @@ int snd_cs46xx_create(struct snd_card *card,
for (idx = 0; idx < 5; idx++) { region = &chip->region.idx[idx]; - if ((region->resource = request_mem_region(region->base, region->size, - region->name)) == NULL) { + region->resource = request_mem_region(region->base, region->size, + region->name); + if (!region->resource) { dev_err(chip->card->dev, "unable to request memory region 0x%lx-0x%lx\n", region->base, region->base + region->size - 1); @@ -4005,7 +4019,8 @@ int snd_cs46xx_create(struct snd_card *card, return err; }
- if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) { + err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops); + if (err < 0) { snd_cs46xx_free(chip); return err; } diff --git a/sound/pci/cs46xx/dsp_spos.c b/sound/pci/cs46xx/dsp_spos.c index 05f3f6dc918d..1db6bc58d6a6 100644 --- a/sound/pci/cs46xx/dsp_spos.c +++ b/sound/pci/cs46xx/dsp_spos.c @@ -617,7 +617,8 @@ static void cs46xx_dsp_proc_parameter_dump_read (struct snd_info_entry *entry, col = 0; }
- if ( (symbol = cs46xx_dsp_lookup_symbol_addr (chip,i / sizeof(u32), SYMBOL_PARAMETER)) != NULL) { + symbol = cs46xx_dsp_lookup_symbol_addr(chip, i / sizeof(u32), SYMBOL_PARAMETER); + if (symbol) { col = 0; snd_iprintf (buffer,"\n%s:\n",symbol->symbol_name); }