mirror of https://gitee.com/openkylin/linux.git
ALSA: hdsp: Fix assignment in if condition
PCI HDSP driver code contains lots of 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/20210608140540.17885-49-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai
parent
28c0709921
commit
66c8f75919
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@ -1318,11 +1318,13 @@ static int snd_hdsp_midi_output_write (struct hdsp_midi *hmidi)
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spin_lock_irqsave (&hmidi->lock, flags);
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if (hmidi->output) {
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if (!snd_rawmidi_transmit_empty (hmidi->output)) {
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if ((n_pending = snd_hdsp_midi_output_possible (hmidi->hdsp, hmidi->id)) > 0) {
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n_pending = snd_hdsp_midi_output_possible(hmidi->hdsp, hmidi->id);
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if (n_pending > 0) {
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if (n_pending > (int)sizeof (buf))
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n_pending = sizeof (buf);
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if ((to_write = snd_rawmidi_transmit (hmidi->output, buf, n_pending)) > 0) {
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to_write = snd_rawmidi_transmit(hmidi->output, buf, n_pending);
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if (to_write > 0) {
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for (i = 0; i < to_write; ++i)
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snd_hdsp_midi_write_byte (hmidi->hdsp, hmidi->id, buf[i]);
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}
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@ -1341,7 +1343,8 @@ static int snd_hdsp_midi_input_read (struct hdsp_midi *hmidi)
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int i;
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spin_lock_irqsave (&hmidi->lock, flags);
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if ((n_pending = snd_hdsp_midi_input_available (hmidi->hdsp, hmidi->id)) > 0) {
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n_pending = snd_hdsp_midi_input_available(hmidi->hdsp, hmidi->id);
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if (n_pending > 0) {
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if (hmidi->input) {
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if (n_pending > (int)sizeof (buf))
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n_pending = sizeof (buf);
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@ -3322,7 +3325,9 @@ static int snd_hdsp_create_controls(struct snd_card *card, struct hdsp *hdsp)
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}
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for (idx = 0; idx < ARRAY_SIZE(snd_hdsp_controls); idx++) {
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if ((err = snd_ctl_add(card, kctl = snd_ctl_new1(&snd_hdsp_controls[idx], hdsp))) < 0)
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kctl = snd_ctl_new1(&snd_hdsp_controls[idx], hdsp);
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err = snd_ctl_add(card, kctl);
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if (err < 0)
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return err;
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if (idx == 1) /* IEC958 (S/PDIF) Stream */
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hdsp->spdif_ctl = kctl;
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@ -3331,12 +3336,16 @@ static int snd_hdsp_create_controls(struct snd_card *card, struct hdsp *hdsp)
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/* ADAT SyncCheck status */
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snd_hdsp_adat_sync_check.name = "ADAT Lock Status";
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snd_hdsp_adat_sync_check.index = 1;
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if ((err = snd_ctl_add (card, kctl = snd_ctl_new1(&snd_hdsp_adat_sync_check, hdsp))))
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kctl = snd_ctl_new1(&snd_hdsp_adat_sync_check, hdsp);
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err = snd_ctl_add(card, kctl);
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if (err < 0)
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return err;
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if (hdsp->io_type == Digiface || hdsp->io_type == H9652) {
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for (idx = 1; idx < 3; ++idx) {
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snd_hdsp_adat_sync_check.index = idx+1;
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if ((err = snd_ctl_add (card, kctl = snd_ctl_new1(&snd_hdsp_adat_sync_check, hdsp))))
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kctl = snd_ctl_new1(&snd_hdsp_adat_sync_check, hdsp);
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err = snd_ctl_add(card, kctl);
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if (err < 0)
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return err;
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}
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}
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@ -3344,7 +3353,9 @@ static int snd_hdsp_create_controls(struct snd_card *card, struct hdsp *hdsp)
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/* DA, AD and Phone gain and XLR breakout cable controls for H9632 cards */
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if (hdsp->io_type == H9632) {
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for (idx = 0; idx < ARRAY_SIZE(snd_hdsp_9632_controls); idx++) {
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if ((err = snd_ctl_add(card, kctl = snd_ctl_new1(&snd_hdsp_9632_controls[idx], hdsp))) < 0)
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kctl = snd_ctl_new1(&snd_hdsp_9632_controls[idx], hdsp);
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err = snd_ctl_add(card, kctl);
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if (err < 0)
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return err;
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}
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}
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@ -3362,8 +3373,10 @@ static int snd_hdsp_create_controls(struct snd_card *card, struct hdsp *hdsp)
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/* AEB control for H96xx card */
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if (hdsp->io_type == H9632 || hdsp->io_type == H9652) {
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if ((err = snd_ctl_add(card, kctl = snd_ctl_new1(&snd_hdsp_96xx_aeb, hdsp))) < 0)
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return err;
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kctl = snd_ctl_new1(&snd_hdsp_96xx_aeb, hdsp);
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err = snd_ctl_add(card, kctl);
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if (err < 0)
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return err;
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}
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return 0;
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@ -3942,7 +3955,8 @@ static char *hdsp_channel_buffer_location(struct hdsp *hdsp,
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if (snd_BUG_ON(channel < 0 || channel >= hdsp->max_channels))
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return NULL;
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if ((mapped_channel = hdsp->channel_map[channel]) < 0)
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mapped_channel = hdsp->channel_map[channel];
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if (mapped_channel < 0)
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return NULL;
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if (stream == SNDRV_PCM_STREAM_CAPTURE)
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@ -4114,7 +4128,8 @@ static int snd_hdsp_hw_params(struct snd_pcm_substream *substream,
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spin_lock_irq(&hdsp->lock);
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if (! hdsp->clock_source_locked) {
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if ((err = hdsp_set_rate(hdsp, params_rate(params), 0)) < 0) {
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err = hdsp_set_rate(hdsp, params_rate(params), 0);
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if (err < 0) {
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spin_unlock_irq(&hdsp->lock);
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_snd_pcm_hw_param_setempty(params, SNDRV_PCM_HW_PARAM_RATE);
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return err;
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@ -4122,7 +4137,8 @@ static int snd_hdsp_hw_params(struct snd_pcm_substream *substream,
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}
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spin_unlock_irq(&hdsp->lock);
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if ((err = hdsp_set_interrupt_interval(hdsp, params_period_size(params))) < 0) {
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err = hdsp_set_interrupt_interval(hdsp, params_period_size(params));
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if (err < 0) {
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_snd_pcm_hw_param_setempty(params, SNDRV_PCM_HW_PARAM_PERIOD_SIZE);
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return err;
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}
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@ -4854,13 +4870,15 @@ static int snd_hdsp_hwdep_ioctl(struct snd_hwdep *hw, struct file *file, unsigne
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if (hdsp->io_type == H9652 || hdsp->io_type == H9632) return -EINVAL;
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if (hdsp->io_type == Undefined) {
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if ((err = hdsp_get_iobox_version(hdsp)) < 0)
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err = hdsp_get_iobox_version(hdsp);
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if (err < 0)
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return err;
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}
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memset(&hdsp_version, 0, sizeof(hdsp_version));
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hdsp_version.io_type = hdsp->io_type;
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hdsp_version.firmware_rev = hdsp->firmware_rev;
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if ((err = copy_to_user(argp, &hdsp_version, sizeof(hdsp_version))))
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err = copy_to_user(argp, &hdsp_version, sizeof(hdsp_version));
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if (err < 0)
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return -EFAULT;
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break;
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}
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@ -4900,17 +4918,20 @@ static int snd_hdsp_hwdep_ioctl(struct snd_hwdep *hw, struct file *file, unsigne
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hdsp->state |= HDSP_FirmwareCached;
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if ((err = snd_hdsp_load_firmware_from_cache(hdsp)) < 0)
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err = snd_hdsp_load_firmware_from_cache(hdsp);
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if (err < 0)
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return err;
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if (!(hdsp->state & HDSP_InitializationComplete)) {
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if ((err = snd_hdsp_enable_io(hdsp)) < 0)
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err = snd_hdsp_enable_io(hdsp);
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if (err < 0)
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return err;
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snd_hdsp_initialize_channels(hdsp);
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snd_hdsp_initialize_midi_flush(hdsp);
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if ((err = snd_hdsp_create_alsa_devices(hdsp->card, hdsp)) < 0) {
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err = snd_hdsp_create_alsa_devices(hdsp->card, hdsp);
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if (err < 0) {
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dev_err(hdsp->card->dev,
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"error creating alsa devices\n");
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return err;
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@ -4960,7 +4981,8 @@ static int snd_hdsp_create_hwdep(struct snd_card *card, struct hdsp *hdsp)
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struct snd_hwdep *hw;
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int err;
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if ((err = snd_hwdep_new(card, "HDSP hwdep", 0, &hw)) < 0)
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err = snd_hwdep_new(card, "HDSP hwdep", 0, &hw);
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if (err < 0)
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return err;
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hdsp->hwdep = hw;
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@ -4978,7 +5000,8 @@ static int snd_hdsp_create_pcm(struct snd_card *card, struct hdsp *hdsp)
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struct snd_pcm *pcm;
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int err;
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if ((err = snd_pcm_new(card, hdsp->card_name, 0, 1, 1, &pcm)) < 0)
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err = snd_pcm_new(card, hdsp->card_name, 0, 1, 1, &pcm);
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if (err < 0)
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return err;
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hdsp->pcm = pcm;
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@ -5084,28 +5107,32 @@ static int snd_hdsp_create_alsa_devices(struct snd_card *card, struct hdsp *hdsp
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{
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int err;
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if ((err = snd_hdsp_create_pcm(card, hdsp)) < 0) {
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err = snd_hdsp_create_pcm(card, hdsp);
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if (err < 0) {
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dev_err(card->dev,
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"Error creating pcm interface\n");
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return err;
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}
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if ((err = snd_hdsp_create_midi(card, hdsp, 0)) < 0) {
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err = snd_hdsp_create_midi(card, hdsp, 0);
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if (err < 0) {
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dev_err(card->dev,
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"Error creating first midi interface\n");
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return err;
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}
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if (hdsp->io_type == Digiface || hdsp->io_type == H9652) {
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if ((err = snd_hdsp_create_midi(card, hdsp, 1)) < 0) {
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err = snd_hdsp_create_midi(card, hdsp, 1);
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if (err < 0) {
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dev_err(card->dev,
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"Error creating second midi interface\n");
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return err;
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}
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}
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if ((err = snd_hdsp_create_controls(card, hdsp)) < 0) {
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err = snd_hdsp_create_controls(card, hdsp);
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if (err < 0) {
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dev_err(card->dev,
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"Error creating ctl interface\n");
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return err;
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@ -5119,7 +5146,8 @@ static int snd_hdsp_create_alsa_devices(struct snd_card *card, struct hdsp *hdsp
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hdsp->capture_substream = NULL;
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hdsp->playback_substream = NULL;
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if ((err = snd_hdsp_set_defaults(hdsp)) < 0) {
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err = snd_hdsp_set_defaults(hdsp);
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if (err < 0) {
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dev_err(card->dev,
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"Error setting default values\n");
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return err;
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@ -5130,7 +5158,8 @@ static int snd_hdsp_create_alsa_devices(struct snd_card *card, struct hdsp *hdsp
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sprintf(card->longname, "%s at 0x%lx, irq %d", hdsp->card_name,
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hdsp->port, hdsp->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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dev_err(card->dev,
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"error registering card\n");
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return err;
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@ -5151,7 +5180,8 @@ static int hdsp_request_fw_loader(struct hdsp *hdsp)
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if (hdsp->io_type == H9652 || hdsp->io_type == H9632)
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return 0;
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if (hdsp->io_type == Undefined) {
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if ((err = hdsp_get_iobox_version(hdsp)) < 0)
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err = hdsp_get_iobox_version(hdsp);
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if (err < 0)
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return err;
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if (hdsp->io_type == H9652 || hdsp->io_type == H9632)
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return 0;
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@ -5197,21 +5227,25 @@ static int hdsp_request_fw_loader(struct hdsp *hdsp)
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hdsp->state |= HDSP_FirmwareCached;
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if ((err = snd_hdsp_load_firmware_from_cache(hdsp)) < 0)
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err = snd_hdsp_load_firmware_from_cache(hdsp);
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if (err < 0)
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return err;
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if (!(hdsp->state & HDSP_InitializationComplete)) {
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if ((err = snd_hdsp_enable_io(hdsp)) < 0)
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err = snd_hdsp_enable_io(hdsp);
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if (err < 0)
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return err;
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if ((err = snd_hdsp_create_hwdep(hdsp->card, hdsp)) < 0) {
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err = snd_hdsp_create_hwdep(hdsp->card, hdsp);
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if (err < 0) {
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dev_err(hdsp->card->dev,
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"error creating hwdep device\n");
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return err;
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}
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snd_hdsp_initialize_channels(hdsp);
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snd_hdsp_initialize_midi_flush(hdsp);
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if ((err = snd_hdsp_create_alsa_devices(hdsp->card, hdsp)) < 0) {
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err = snd_hdsp_create_alsa_devices(hdsp->card, hdsp);
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if (err < 0) {
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dev_err(hdsp->card->dev,
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"error creating alsa devices\n");
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return err;
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@ -5280,15 +5314,18 @@ static int snd_hdsp_create(struct snd_card *card,
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is_9632 = 1;
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}
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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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pci_set_master(hdsp->pci);
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if ((err = pci_request_regions(pci, "hdsp")) < 0)
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err = pci_request_regions(pci, "hdsp");
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if (err < 0)
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return err;
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hdsp->port = pci_resource_start(pci, 0);
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if ((hdsp->iobase = ioremap(hdsp->port, HDSP_IO_EXTENT)) == NULL) {
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hdsp->iobase = ioremap(hdsp->port, HDSP_IO_EXTENT);
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if (!hdsp->iobase) {
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dev_err(hdsp->card->dev, "unable to remap region 0x%lx-0x%lx\n",
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hdsp->port, hdsp->port + HDSP_IO_EXTENT - 1);
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return -EBUSY;
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@ -5306,7 +5343,8 @@ static int snd_hdsp_create(struct snd_card *card,
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hdsp->use_midi_work = 1;
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hdsp->dds_value = 0;
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if ((err = snd_hdsp_initialize_memory(hdsp)) < 0)
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err = snd_hdsp_initialize_memory(hdsp);
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if (err < 0)
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return err;
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if (!is_9652 && !is_9632) {
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@ -5318,7 +5356,8 @@ static int snd_hdsp_create(struct snd_card *card,
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return err;
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if ((hdsp_read (hdsp, HDSP_statusRegister) & HDSP_DllError) != 0) {
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if ((err = hdsp_request_fw_loader(hdsp)) < 0)
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err = hdsp_request_fw_loader(hdsp);
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if (err < 0)
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/* we don't fail as this can happen
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if userspace is not ready for
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firmware upload
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@ -5331,7 +5370,8 @@ static int snd_hdsp_create(struct snd_card *card,
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/* we defer initialization */
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dev_info(hdsp->card->dev,
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"card initialization pending : waiting for firmware\n");
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if ((err = snd_hdsp_create_hwdep(card, hdsp)) < 0)
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err = snd_hdsp_create_hwdep(card, hdsp);
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if (err < 0)
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return err;
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return 0;
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} else {
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@ -5346,7 +5386,8 @@ static int snd_hdsp_create(struct snd_card *card,
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}
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}
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if ((err = snd_hdsp_enable_io(hdsp)) != 0)
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err = snd_hdsp_enable_io(hdsp);
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if (err)
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return err;
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if (is_9652)
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@ -5355,7 +5396,8 @@ static int snd_hdsp_create(struct snd_card *card,
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if (is_9632)
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hdsp->io_type = H9632;
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if ((err = snd_hdsp_create_hwdep(card, hdsp)) < 0)
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err = snd_hdsp_create_hwdep(card, hdsp);
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if (err < 0)
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return err;
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snd_hdsp_initialize_channels(hdsp);
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@ -5363,7 +5405,8 @@ static int snd_hdsp_create(struct snd_card *card,
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hdsp->state |= HDSP_FirmwareLoaded;
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if ((err = snd_hdsp_create_alsa_devices(card, hdsp)) < 0)
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err = snd_hdsp_create_alsa_devices(card, hdsp);
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if (err < 0)
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return err;
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return 0;
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