ALSA: es1968: Fix assignment in if condition
PCI ES1968 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/20210608140540.17885-27-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai
Родитель
3dc5281540
Коммит
48cab474d8
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@ -1600,7 +1600,8 @@ static int snd_es1968_capture_open(struct snd_pcm_substream *substream)
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es->mode = ESM_MODE_CAPTURE;
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/* get mixbuffer */
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if ((es->mixbuf = snd_es1968_new_memory(chip, ESM_MIXBUF_SIZE)) == NULL) {
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es->mixbuf = snd_es1968_new_memory(chip, ESM_MIXBUF_SIZE);
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if (!es->mixbuf) {
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snd_es1968_free_apu_pair(chip, apu1);
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snd_es1968_free_apu_pair(chip, apu2);
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kfree(es);
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@ -1695,11 +1696,13 @@ static void es1968_measure_clock(struct es1968 *chip)
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chip->clock = 48000; /* default clock value */
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/* search 2 APUs (although one apu is enough) */
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if ((apu = snd_es1968_alloc_apu_pair(chip, ESM_APU_PCM_PLAY)) < 0) {
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apu = snd_es1968_alloc_apu_pair(chip, ESM_APU_PCM_PLAY);
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if (apu < 0) {
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dev_err(chip->card->dev, "Hmm, cannot find empty APU pair!?\n");
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return;
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}
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if ((memory = snd_es1968_new_memory(chip, CLOCK_MEASURE_BUFSIZE)) == NULL) {
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memory = snd_es1968_new_memory(chip, CLOCK_MEASURE_BUFSIZE);
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if (!memory) {
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dev_warn(chip->card->dev,
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"cannot allocate dma buffer - using default clock %d\n",
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chip->clock);
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@ -1791,7 +1794,8 @@ snd_es1968_pcm(struct es1968 *chip, int device)
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int err;
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/* get DMA buffer */
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if ((err = snd_es1968_init_dmabuf(chip)) < 0)
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err = snd_es1968_init_dmabuf(chip);
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if (err < 0)
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return err;
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/* set PCMBAR */
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@ -1800,9 +1804,10 @@ snd_es1968_pcm(struct es1968 *chip, int device)
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wave_set_register(chip, 0x01FE, chip->dma.addr >> 12);
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wave_set_register(chip, 0x01FF, chip->dma.addr >> 12);
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if ((err = snd_pcm_new(chip->card, "ESS Maestro", device,
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chip->playback_streams,
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chip->capture_streams, &pcm)) < 0)
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err = snd_pcm_new(chip->card, "ESS Maestro", device,
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chip->playback_streams,
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chip->capture_streams, &pcm);
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if (err < 0)
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return err;
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pcm->private_data = chip;
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@ -1953,7 +1958,8 @@ static irqreturn_t snd_es1968_interrupt(int irq, void *dev_id)
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struct es1968 *chip = dev_id;
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u32 event;
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if (!(event = inb(chip->io_port + 0x1A)))
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event = inb(chip->io_port + 0x1A);
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if (!event)
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return IRQ_NONE;
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outw(inw(chip->io_port + 4) & 1, chip->io_port + 4);
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@ -2008,13 +2014,15 @@ snd_es1968_mixer(struct es1968 *chip)
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.read = snd_es1968_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; /* ES1968 doesn't need VRA */
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memset(&ac97, 0, sizeof(ac97));
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ac97.private_data = chip;
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if ((err = snd_ac97_mixer(pbus, &ac97, &chip->ac97)) < 0)
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err = snd_ac97_mixer(pbus, &ac97, &chip->ac97);
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if (err < 0)
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return err;
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#ifndef CONFIG_SND_ES1968_INPUT
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@ -2661,7 +2669,8 @@ static int snd_es1968_create(struct snd_card *card,
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*chip_ret = NULL;
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/* enable PCI device */
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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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/* check, if we can restrict PCI DMA transfers to 28 bits */
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if (dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(28))) {
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@ -2692,7 +2701,8 @@ static int snd_es1968_create(struct snd_card *card,
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chip->playback_streams = play_streams;
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chip->capture_streams = capt_streams;
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if ((err = pci_request_regions(pci, "ESS Maestro")) < 0) {
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err = pci_request_regions(pci, "ESS Maestro");
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if (err < 0) {
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kfree(chip);
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pci_disable_device(pci);
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return err;
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@ -2739,7 +2749,8 @@ static int snd_es1968_create(struct snd_card *card,
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snd_es1968_chip_init(chip);
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if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, 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_es1968_free(chip);
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return err;
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}
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@ -2804,14 +2815,15 @@ static int snd_es1968_probe(struct pci_dev *pci,
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total_bufsize[dev] = 128;
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if (total_bufsize[dev] > 4096)
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total_bufsize[dev] = 4096;
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if ((err = snd_es1968_create(card, pci,
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total_bufsize[dev] * 1024, /* in bytes */
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pcm_substreams_p[dev],
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pcm_substreams_c[dev],
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pci_id->driver_data,
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use_pm[dev],
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radio_nr[dev],
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&chip)) < 0) {
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err = snd_es1968_create(card, pci,
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total_bufsize[dev] * 1024, /* in bytes */
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pcm_substreams_p[dev],
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pcm_substreams_c[dev],
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pci_id->driver_data,
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use_pm[dev],
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radio_nr[dev],
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&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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@ -2832,12 +2844,14 @@ static int snd_es1968_probe(struct pci_dev *pci,
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break;
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}
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if ((err = snd_es1968_pcm(chip, 0)) < 0) {
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err = snd_es1968_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_es1968_mixer(chip)) < 0) {
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err = snd_es1968_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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@ -2855,13 +2869,13 @@ static int snd_es1968_probe(struct pci_dev *pci,
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}
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}
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if (enable_mpu[dev]) {
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if ((err = snd_mpu401_uart_new(card, 0, MPU401_HW_MPU401,
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chip->io_port + ESM_MPU401_PORT,
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MPU401_INFO_INTEGRATED |
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MPU401_INFO_IRQ_HOOK,
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-1, &chip->rmidi)) < 0) {
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err = snd_mpu401_uart_new(card, 0, MPU401_HW_MPU401,
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chip->io_port + ESM_MPU401_PORT,
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MPU401_INFO_INTEGRATED |
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MPU401_INFO_IRQ_HOOK,
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-1, &chip->rmidi);
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if (err < 0)
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dev_warn(card->dev, "skipping MPU-401 MIDI support..\n");
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}
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}
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snd_es1968_create_gameport(chip, dev);
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@ -2882,7 +2896,8 @@ static int snd_es1968_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->io_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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