ALSA: emu10k1x: Fix assignment in if condition
PCI EMU10k1X 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. Link: https://lore.kernel.org/r/20210608140540.17885-42-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai
parent
12bda1076c
commit
9031f93851
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@ -349,7 +349,8 @@ static void snd_emu10k1x_pcm_interrupt(struct emu10k1x *emu, struct emu10k1x_voi
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{
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struct emu10k1x_pcm *epcm;
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if ((epcm = voice->epcm) == NULL)
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epcm = voice->epcm;
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if (!epcm)
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return;
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if (epcm->substream == NULL)
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return;
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@ -371,10 +372,11 @@ static int snd_emu10k1x_playback_open(struct snd_pcm_substream *substream)
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struct snd_pcm_runtime *runtime = substream->runtime;
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int err;
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if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0) {
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err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
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if (err < 0)
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return err;
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}
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if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
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err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64);
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if (err < 0)
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return err;
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epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
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@ -550,10 +552,12 @@ static int snd_emu10k1x_pcm_open_capture(struct snd_pcm_substream *substream)
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struct snd_pcm_runtime *runtime = substream->runtime;
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int err;
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if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
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return err;
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if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
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return err;
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err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
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if (err < 0)
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return err;
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err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64);
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if (err < 0)
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return err;
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epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
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if (epcm == NULL)
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@ -722,7 +726,8 @@ static int snd_emu10k1x_ac97(struct emu10k1x *chip)
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.read = snd_emu10k1x_ac97_read,
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};
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if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus)) < 0)
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err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus);
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if (err < 0)
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return err;
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pbus->no_vra = 1; /* we don't need VRA */
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@ -838,7 +843,8 @@ static int snd_emu10k1x_pcm(struct emu10k1x *emu, int device)
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if (device == 0)
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capture = 1;
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if ((err = snd_pcm_new(emu->card, "emu10k1x", device, 1, capture, &pcm)) < 0)
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err = snd_pcm_new(emu->card, "emu10k1x", device, 1, capture, &pcm);
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if (err < 0)
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return err;
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pcm->private_data = emu;
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@ -891,7 +897,8 @@ static int snd_emu10k1x_create(struct snd_card *card,
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*rchip = NULL;
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if ((err = pci_enable_device(pci)) < 0)
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err = pci_enable_device(pci);
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if (err < 0)
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return err;
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if (dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(28)) < 0) {
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@ -914,8 +921,8 @@ static int snd_emu10k1x_create(struct snd_card *card,
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spin_lock_init(&chip->voice_lock);
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chip->port = pci_resource_start(pci, 0);
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if ((chip->res_port = request_region(chip->port, 8,
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"EMU10K1X")) == NULL) {
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chip->res_port = request_region(chip->port, 8, "EMU10K1X");
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if (!chip->res_port) {
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dev_err(card->dev, "cannot allocate the port 0x%lx\n",
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chip->port);
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snd_emu10k1x_free(chip);
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@ -991,8 +998,8 @@ static int snd_emu10k1x_create(struct snd_card *card,
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outl(HCFG_LOCKSOUNDCACHE|HCFG_AUDIOENABLE, chip->port+HCFG);
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if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL,
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chip, &ops)) < 0) {
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err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
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if (err < 0) {
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snd_emu10k1x_free(chip);
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return err;
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}
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@ -1171,17 +1178,23 @@ static int snd_emu10k1x_mixer(struct emu10k1x *emu)
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struct snd_kcontrol *kctl;
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struct snd_card *card = emu->card;
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if ((kctl = snd_ctl_new1(&snd_emu10k1x_spdif_mask_control, emu)) == NULL)
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kctl = snd_ctl_new1(&snd_emu10k1x_spdif_mask_control, emu);
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if (!kctl)
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return -ENOMEM;
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if ((err = snd_ctl_add(card, kctl)))
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err = snd_ctl_add(card, kctl);
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if (err)
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return err;
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if ((kctl = snd_ctl_new1(&snd_emu10k1x_shared_spdif, emu)) == NULL)
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kctl = snd_ctl_new1(&snd_emu10k1x_shared_spdif, emu);
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if (!kctl)
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return -ENOMEM;
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if ((err = snd_ctl_add(card, kctl)))
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err = snd_ctl_add(card, kctl);
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if (err)
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return err;
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if ((kctl = snd_ctl_new1(&snd_emu10k1x_spdif_control, emu)) == NULL)
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kctl = snd_ctl_new1(&snd_emu10k1x_spdif_control, emu);
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if (!kctl)
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return -ENOMEM;
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if ((err = snd_ctl_add(card, kctl)))
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err = snd_ctl_add(card, kctl);
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if (err)
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return err;
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return 0;
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@ -1488,7 +1501,8 @@ static int emu10k1x_midi_init(struct emu10k1x *emu,
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struct snd_rawmidi *rmidi;
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int err;
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if ((err = snd_rawmidi_new(emu->card, name, device, 1, 1, &rmidi)) < 0)
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err = snd_rawmidi_new(emu->card, name, device, 1, 1, &rmidi);
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if (err < 0)
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return err;
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midi->emu = emu;
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spin_lock_init(&midi->open_lock);
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@ -1511,7 +1525,8 @@ static int snd_emu10k1x_midi(struct emu10k1x *emu)
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struct emu10k1x_midi *midi = &emu->midi;
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int err;
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if ((err = emu10k1x_midi_init(emu, midi, 0, "EMU10K1X MPU-401 (UART)")) < 0)
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err = emu10k1x_midi_init(emu, midi, 0, "EMU10K1X MPU-401 (UART)");
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if (err < 0)
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return err;
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midi->tx_enable = INTE_MIDITXENABLE;
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@ -1543,35 +1558,42 @@ static int snd_emu10k1x_probe(struct pci_dev *pci,
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if (err < 0)
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return err;
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if ((err = snd_emu10k1x_create(card, pci, &chip)) < 0) {
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err = snd_emu10k1x_create(card, pci, &chip);
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if (err < 0) {
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snd_card_free(card);
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return err;
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}
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if ((err = snd_emu10k1x_pcm(chip, 0)) < 0) {
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err = snd_emu10k1x_pcm(chip, 0);
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if (err < 0) {
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snd_card_free(card);
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return err;
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}
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if ((err = snd_emu10k1x_pcm(chip, 1)) < 0) {
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err = snd_emu10k1x_pcm(chip, 1);
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if (err < 0) {
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snd_card_free(card);
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return err;
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}
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if ((err = snd_emu10k1x_pcm(chip, 2)) < 0) {
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err = snd_emu10k1x_pcm(chip, 2);
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if (err < 0) {
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snd_card_free(card);
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return err;
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}
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if ((err = snd_emu10k1x_ac97(chip)) < 0) {
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err = snd_emu10k1x_ac97(chip);
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if (err < 0) {
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snd_card_free(card);
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return err;
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}
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if ((err = snd_emu10k1x_mixer(chip)) < 0) {
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err = snd_emu10k1x_mixer(chip);
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if (err < 0) {
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snd_card_free(card);
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return err;
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}
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if ((err = snd_emu10k1x_midi(chip)) < 0) {
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err = snd_emu10k1x_midi(chip);
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if (err < 0) {
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snd_card_free(card);
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return err;
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}
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@ -1583,7 +1605,8 @@ static int snd_emu10k1x_probe(struct pci_dev *pci,
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sprintf(card->longname, "%s at 0x%lx irq %i",
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card->shortname, chip->port, chip->irq);
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if ((err = snd_card_register(card)) < 0) {
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err = snd_card_register(card);
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if (err < 0) {
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snd_card_free(card);
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return err;
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}
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