diff options
author | Takashi Iwai <tiwai@suse.de> | 2021-06-08 17:04:59 +0300 |
---|---|---|
committer | Takashi Iwai <tiwai@suse.de> | 2021-06-09 18:29:56 +0300 |
commit | 3dc52815408b90ed41948ab65fb1a46ea1fa3170 (patch) | |
tree | a8e3f532f2ae9d41099edbf8e131b63c19182e35 /sound/pci/es1938.c | |
parent | 93a3a1004d18b0539b1f648fa2cd2338f5f896cd (diff) | |
download | linux-3dc52815408b90ed41948ab65fb1a46ea1fa3170.tar.xz |
ALSA: es1938: Fix assignment in if condition
PCI ES1938 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/20210608140540.17885-26-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/es1938.c')
-rw-r--r-- | sound/pci/es1938.c | 42 |
1 files changed, 28 insertions, 14 deletions
diff --git a/sound/pci/es1938.c b/sound/pci/es1938.c index afc66347d162..33b1eb347a27 100644 --- a/sound/pci/es1938.c +++ b/sound/pci/es1938.c @@ -293,7 +293,8 @@ static void snd_es1938_write_cmd(struct es1938 *chip, unsigned char cmd) int i; unsigned char v; for (i = 0; i < WRITE_LOOP_TIMEOUT; i++) { - if (!(v = inb(SLSB_REG(chip, READSTATUS)) & 0x80)) { + v = inb(SLSB_REG(chip, READSTATUS)); + if (!(v & 0x80)) { outb(cmd, SLSB_REG(chip, WRITEDATA)); return; } @@ -309,9 +310,11 @@ static int snd_es1938_get_byte(struct es1938 *chip) { int i; unsigned char v; - for (i = GET_LOOP_TIMEOUT; i; i--) - if ((v = inb(SLSB_REG(chip, STATUS))) & 0x80) + for (i = GET_LOOP_TIMEOUT; i; i--) { + v = inb(SLSB_REG(chip, STATUS)); + if (v & 0x80) return inb(SLSB_REG(chip, READDATA)); + } dev_err(chip->card->dev, "get_byte timeout: status 0x02%x\n", v); return -ENODEV; } @@ -993,7 +996,8 @@ static int snd_es1938_new_pcm(struct es1938 *chip, int device) struct snd_pcm *pcm; int err; - if ((err = snd_pcm_new(chip->card, "es-1938-1946", device, 2, 1, &pcm)) < 0) + err = snd_pcm_new(chip->card, "es-1938-1946", device, 2, 1, &pcm); + if (err < 0) return err; snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_es1938_playback_ops); snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_es1938_capture_ops); @@ -1553,7 +1557,8 @@ static int snd_es1938_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; /* check, if we can restrict PCI DMA transfers to 24 bits */ if (dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(24))) { @@ -1573,7 +1578,8 @@ static int snd_es1938_create(struct snd_card *card, chip->card = card; chip->pci = pci; chip->irq = -1; - if ((err = pci_request_regions(pci, "ESS Solo-1")) < 0) { + err = pci_request_regions(pci, "ESS Solo-1"); + if (err < 0) { kfree(chip); pci_disable_device(pci); return err; @@ -1599,7 +1605,8 @@ static int snd_es1938_create(struct snd_card *card, snd_es1938_chip_init(chip); - 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_es1938_free(chip); return err; } @@ -1731,7 +1738,8 @@ static int snd_es1938_mixer(struct es1938 *chip) kctl->private_free = snd_es1938_hwv_free; break; } - if ((err = snd_ctl_add(card, kctl)) < 0) + err = snd_ctl_add(card, kctl); + if (err < 0) return err; } return 0; @@ -1765,7 +1773,8 @@ static int snd_es1938_probe(struct pci_dev *pci, return -ENODEV; } } - if ((err = snd_es1938_create(card, pci, &chip)) < 0) { + err = snd_es1938_create(card, pci, &chip); + if (err < 0) { snd_card_free(card); return err; } @@ -1778,11 +1787,13 @@ static int snd_es1938_probe(struct pci_dev *pci, chip->revision, chip->irq); - if ((err = snd_es1938_new_pcm(chip, 0)) < 0) { + err = snd_es1938_new_pcm(chip, 0); + if (err < 0) { snd_card_free(card); return err; } - if ((err = snd_es1938_mixer(chip)) < 0) { + err = snd_es1938_mixer(chip); + if (err < 0) { snd_card_free(card); return err; } @@ -1793,11 +1804,13 @@ static int snd_es1938_probe(struct pci_dev *pci, dev_err(card->dev, "OPL3 not detected at 0x%lx\n", SLSB_REG(chip, FMLOWADDR)); } else { - if ((err = snd_opl3_timer_new(opl3, 0, 1)) < 0) { + err = snd_opl3_timer_new(opl3, 0, 1); + if (err < 0) { snd_card_free(card); return err; } - if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) { + err = snd_opl3_hwdep_new(opl3, 0, 1, NULL); + if (err < 0) { snd_card_free(card); return err; } @@ -1815,7 +1828,8 @@ static int snd_es1938_probe(struct pci_dev *pci, snd_es1938_create_gameport(chip); - if ((err = snd_card_register(card)) < 0) { + err = snd_card_register(card); + if (err < 0) { snd_card_free(card); return err; } |