PCI RME32 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 (except for a slight refactoring about AutoSync rate check, only systematic conversions), no functional changes.
Signed-off-by: Takashi Iwai tiwai@suse.de --- sound/pci/rme32.c | 76 ++++++++++++++++++++++++++++++----------------- 1 file changed, 48 insertions(+), 28 deletions(-)
diff --git a/sound/pci/rme32.c b/sound/pci/rme32.c index 54f3e39f97f5..b5b357853c94 100644 --- a/sound/pci/rme32.c +++ b/sound/pci/rme32.c @@ -668,18 +668,24 @@ snd_rme32_playback_hw_params(struct snd_pcm_substream *substream, }
spin_lock_irq(&rme32->lock); - if ((rme32->rcreg & RME32_RCR_KMODE) && - (rate = snd_rme32_capture_getrate(rme32, &dummy)) > 0) { + rate = 0; + if (rme32->rcreg & RME32_RCR_KMODE) + rate = snd_rme32_capture_getrate(rme32, &dummy); + if (rate > 0) { /* AutoSync */ if ((int)params_rate(params) != rate) { spin_unlock_irq(&rme32->lock); return -EIO; } - } else if ((err = snd_rme32_playback_setrate(rme32, params_rate(params))) < 0) { - spin_unlock_irq(&rme32->lock); - return err; + } else { + err = snd_rme32_playback_setrate(rme32, params_rate(params)); + if (err < 0) { + spin_unlock_irq(&rme32->lock); + return err; + } } - if ((err = snd_rme32_setformat(rme32, params_format(params))) < 0) { + err = snd_rme32_setformat(rme32, params_format(params)); + if (err < 0) { spin_unlock_irq(&rme32->lock); return err; } @@ -723,15 +729,18 @@ snd_rme32_capture_hw_params(struct snd_pcm_substream *substream, rme32->wcreg |= RME32_WCR_AUTOSYNC; writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
- if ((err = snd_rme32_setformat(rme32, params_format(params))) < 0) { + err = snd_rme32_setformat(rme32, params_format(params)); + if (err < 0) { spin_unlock_irq(&rme32->lock); return err; } - if ((err = snd_rme32_playback_setrate(rme32, params_rate(params))) < 0) { + err = snd_rme32_playback_setrate(rme32, params_rate(params)); + if (err < 0) { spin_unlock_irq(&rme32->lock); return err; } - if ((rate = snd_rme32_capture_getrate(rme32, &isadat)) > 0) { + rate = snd_rme32_capture_getrate(rme32, &isadat); + if (rate > 0) { if ((int)params_rate(params) != rate) { spin_unlock_irq(&rme32->lock); return -EIO; @@ -854,8 +863,10 @@ static int snd_rme32_playback_spdif_open(struct snd_pcm_substream *substream) runtime->hw.rates |= SNDRV_PCM_RATE_64000 | SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000; runtime->hw.rate_max = 96000; } - if ((rme32->rcreg & RME32_RCR_KMODE) && - (rate = snd_rme32_capture_getrate(rme32, &dummy)) > 0) { + rate = 0; + if (rme32->rcreg & RME32_RCR_KMODE) + rate = snd_rme32_capture_getrate(rme32, &dummy); + if (rate > 0) { /* AutoSync */ runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate); runtime->hw.rate_min = rate; @@ -895,7 +906,8 @@ static int snd_rme32_capture_spdif_open(struct snd_pcm_substream *substream) runtime->hw.rates |= SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000; runtime->hw.rate_max = 96000; } - if ((rate = snd_rme32_capture_getrate(rme32, &isadat)) > 0) { + rate = snd_rme32_capture_getrate(rme32, &isadat); + if (rate > 0) { if (isadat) { return -EIO; } @@ -932,8 +944,10 @@ snd_rme32_playback_adat_open(struct snd_pcm_substream *substream) runtime->hw = snd_rme32_adat_fd_info; else runtime->hw = snd_rme32_adat_info; - if ((rme32->rcreg & RME32_RCR_KMODE) && - (rate = snd_rme32_capture_getrate(rme32, &dummy)) > 0) { + rate = 0; + if (rme32->rcreg & RME32_RCR_KMODE) + rate = snd_rme32_capture_getrate(rme32, &dummy); + if (rate > 0) { /* AutoSync */ runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate); runtime->hw.rate_min = rate; @@ -955,7 +969,8 @@ snd_rme32_capture_adat_open(struct snd_pcm_substream *substream) runtime->hw = snd_rme32_adat_fd_info; else runtime->hw = snd_rme32_adat_info; - if ((rate = snd_rme32_capture_getrate(rme32, &isadat)) > 0) { + rate = snd_rme32_capture_getrate(rme32, &isadat); + if (rate > 0) { if (!isadat) { return -EIO; } @@ -1307,10 +1322,12 @@ static int snd_rme32_create(struct rme32 *rme32) rme32->irq = -1; spin_lock_init(&rme32->lock);
- if ((err = pci_enable_device(pci)) < 0) + err = pci_enable_device(pci); + if (err < 0) return err;
- if ((err = pci_request_regions(pci, "RME32")) < 0) + err = pci_request_regions(pci, "RME32"); + if (err < 0) return err; rme32->port = pci_resource_start(rme32->pci, 0);
@@ -1334,9 +1351,9 @@ static int snd_rme32_create(struct rme32 *rme32) pci_read_config_byte(pci, 8, &rme32->rev);
/* set up ALSA pcm device for S/PDIF */ - if ((err = snd_pcm_new(rme32->card, "Digi32 IEC958", 0, 1, 1, &rme32->spdif_pcm)) < 0) { + err = snd_pcm_new(rme32->card, "Digi32 IEC958", 0, 1, 1, &rme32->spdif_pcm); + if (err < 0) return err; - } rme32->spdif_pcm->private_data = rme32; rme32->spdif_pcm->private_free = snd_rme32_free_spdif_pcm; strcpy(rme32->spdif_pcm->name, "Digi32 IEC958"); @@ -1363,11 +1380,10 @@ static int snd_rme32_create(struct rme32 *rme32) rme32->adat_pcm = NULL; } else { - if ((err = snd_pcm_new(rme32->card, "Digi32 ADAT", 1, - 1, 1, &rme32->adat_pcm)) < 0) - { + err = snd_pcm_new(rme32->card, "Digi32 ADAT", 1, + 1, 1, &rme32->adat_pcm); + if (err < 0) return err; - } rme32->adat_pcm->private_data = rme32; rme32->adat_pcm->private_free = snd_rme32_free_adat_pcm; strcpy(rme32->adat_pcm->name, "Digi32 ADAT"); @@ -1410,9 +1426,9 @@ static int snd_rme32_create(struct rme32 *rme32)
/* init switch interface */ - if ((err = snd_rme32_create_switches(rme32->card, rme32)) < 0) { + err = snd_rme32_create_switches(rme32->card, rme32); + if (err < 0) return err; - }
/* init proc interface */ snd_rme32_proc_init(rme32); @@ -1855,7 +1871,9 @@ static int snd_rme32_create_switches(struct snd_card *card, struct rme32 * rme32 struct snd_kcontrol *kctl;
for (idx = 0; idx < (int)ARRAY_SIZE(snd_rme32_controls); idx++) { - if ((err = snd_ctl_add(card, kctl = snd_ctl_new1(&snd_rme32_controls[idx], rme32))) < 0) + kctl = snd_ctl_new1(&snd_rme32_controls[idx], rme32); + err = snd_ctl_add(card, kctl); + if (err < 0) return err; if (idx == 1) /* IEC958 (S/PDIF) Stream */ rme32->spdif_ctl = kctl; @@ -1899,7 +1917,8 @@ snd_rme32_probe(struct pci_dev *pci, const struct pci_device_id *pci_id) rme32->pci = pci; if (fullduplex[dev]) rme32->fullduplex_mode = 1; - if ((err = snd_rme32_create(rme32)) < 0) { + err = snd_rme32_create(rme32); + if (err < 0) { snd_card_free(card); return err; } @@ -1919,7 +1938,8 @@ snd_rme32_probe(struct pci_dev *pci, const struct pci_device_id *pci_id) sprintf(card->longname, "%s (Rev. %d) at 0x%lx, irq %d", card->shortname, rme32->rev, rme32->port, rme32->irq);
- if ((err = snd_card_register(card)) < 0) { + err = snd_card_register(card); + if (err < 0) { snd_card_free(card); return err; }