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ALSA: vx: Fix assignment in if condition

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VX driver helper 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/20210608140540.17885-61-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2021-06-08 16:05:34 +02:00
parent d2bc4d9ab1
commit ed1567c106
4 changed files with 95 additions and 48 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

60
sound/drivers/vx/vx_core.c
View File

@ -110,20 +110,25 @@ static int vx_transfer_end(struct vx_core *chip, int cmd)
{
int err;
if ((err = vx_reset_chk(chip)) < 0)
err = vx_reset_chk(chip);
if (err < 0)
return err;
/* irq MESS_READ/WRITE_END */
if ((err = vx_send_irq_dsp(chip, cmd)) < 0)
err = vx_send_irq_dsp(chip, cmd);
if (err < 0)
return err;
/* Wait CHK = 1 */
if ((err = vx_wait_isr_bit(chip, ISR_CHK)) < 0)
err = vx_wait_isr_bit(chip, ISR_CHK);
if (err < 0)
return err;
/* If error, Read RX */
if ((err = vx_inb(chip, ISR)) & ISR_ERR) {
if ((err = vx_wait_for_rx_full(chip)) < 0) {
err = vx_inb(chip, ISR);
if (err & ISR_ERR) {
err = vx_wait_for_rx_full(chip);
if (err < 0) {
snd_printd(KERN_DEBUG "transfer_end: error in rx_full\n");
return err;
}
@ -232,7 +237,8 @@ int vx_send_msg_nolock(struct vx_core *chip, struct vx_rmh *rmh)
if (chip->chip_status & VX_STAT_IS_STALE)
return -EBUSY;
if ((err = vx_reset_chk(chip)) < 0) {
err = vx_reset_chk(chip);
if (err < 0) {
snd_printd(KERN_DEBUG "vx_send_msg: vx_reset_chk error\n");
return err;
}
@ -254,7 +260,8 @@ int vx_send_msg_nolock(struct vx_core *chip, struct vx_rmh *rmh)
rmh->Cmd[0] &= MASK_1_WORD_COMMAND;
/* Wait for TX empty */
if ((err = vx_wait_isr_bit(chip, ISR_TX_EMPTY)) < 0) {
err = vx_wait_isr_bit(chip, ISR_TX_EMPTY);
if (err < 0) {
snd_printd(KERN_DEBUG "vx_send_msg: wait tx empty error\n");
return err;
}
@ -265,18 +272,21 @@ int vx_send_msg_nolock(struct vx_core *chip, struct vx_rmh *rmh)
vx_outb(chip, TXL, rmh->Cmd[0] & 0xff);
/* Trigger irq MESSAGE */
if ((err = vx_send_irq_dsp(chip, IRQ_MESSAGE)) < 0) {
err = vx_send_irq_dsp(chip, IRQ_MESSAGE);
if (err < 0) {
snd_printd(KERN_DEBUG "vx_send_msg: send IRQ_MESSAGE error\n");
return err;
}
/* Wait for CHK = 1 */
if ((err = vx_wait_isr_bit(chip, ISR_CHK)) < 0)
err = vx_wait_isr_bit(chip, ISR_CHK);
if (err < 0)
return err;
/* If error, get error value from RX */
if (vx_inb(chip, ISR) & ISR_ERR) {
if ((err = vx_wait_for_rx_full(chip)) < 0) {
err = vx_wait_for_rx_full(chip);
if (err < 0) {
snd_printd(KERN_DEBUG "vx_send_msg: rx_full read error\n");
return err;
}
@ -292,7 +302,8 @@ int vx_send_msg_nolock(struct vx_core *chip, struct vx_rmh *rmh)
if (rmh->LgCmd > 1) {
for (i = 1; i < rmh->LgCmd; i++) {
/* Wait for TX ready */
if ((err = vx_wait_isr_bit(chip, ISR_TX_READY)) < 0) {
err = vx_wait_isr_bit(chip, ISR_TX_READY);
if (err < 0) {
snd_printd(KERN_DEBUG "vx_send_msg: tx_ready error\n");
return err;
}
@ -303,13 +314,15 @@ int vx_send_msg_nolock(struct vx_core *chip, struct vx_rmh *rmh)
vx_outb(chip, TXL, rmh->Cmd[i] & 0xff);
/* Trigger irq MESS_READ_NEXT */
if ((err = vx_send_irq_dsp(chip, IRQ_MESS_READ_NEXT)) < 0) {
err = vx_send_irq_dsp(chip, IRQ_MESS_READ_NEXT);
if (err < 0) {
snd_printd(KERN_DEBUG "vx_send_msg: IRQ_READ_NEXT error\n");
return err;
}
}
/* Wait for TX empty */
if ((err = vx_wait_isr_bit(chip, ISR_TX_READY)) < 0) {
err = vx_wait_isr_bit(chip, ISR_TX_READY);
if (err < 0) {
snd_printd(KERN_DEBUG "vx_send_msg: TX_READY error\n");
return err;
}
@ -362,17 +375,21 @@ int vx_send_rih_nolock(struct vx_core *chip, int cmd)
#if 0
printk(KERN_DEBUG "send_rih: cmd = 0x%x\n", cmd);
#endif
if ((err = vx_reset_chk(chip)) < 0)
err = vx_reset_chk(chip);
if (err < 0)
return err;
/* send the IRQ */
if ((err = vx_send_irq_dsp(chip, cmd)) < 0)
err = vx_send_irq_dsp(chip, cmd);
if (err < 0)
return err;
/* Wait CHK = 1 */
if ((err = vx_wait_isr_bit(chip, ISR_CHK)) < 0)
err = vx_wait_isr_bit(chip, ISR_CHK);
if (err < 0)
return err;
/* If error, read RX */
if (vx_inb(chip, ISR) & ISR_ERR) {
if ((err = vx_wait_for_rx_full(chip)) < 0)
err = vx_wait_for_rx_full(chip);
if (err < 0)
return err;
err = vx_inb(chip, RXH) << 16;
err |= vx_inb(chip, RXM) << 8;
@ -648,7 +665,8 @@ int snd_vx_dsp_boot(struct vx_core *chip, const struct firmware *boot)
vx_reset_board(chip, cold_reset);
vx_validate_irq(chip, 0);
if ((err = snd_vx_load_boot_image(chip, boot)) < 0)
err = snd_vx_load_boot_image(chip, boot);
if (err < 0)
return err;
msleep(10);
@ -678,7 +696,8 @@ int snd_vx_dsp_load(struct vx_core *chip, const struct firmware *dsp)
for (i = 0; i < dsp->size; i += 3) {
image = dsp->data + i;
/* Wait DSP ready for a new read */
if ((err = vx_wait_isr_bit(chip, ISR_TX_EMPTY)) < 0) {
err = vx_wait_isr_bit(chip, ISR_TX_EMPTY);
if (err < 0) {
printk(KERN_ERR
"dsp loading error at position %d\n", i);
return err;
@ -698,7 +717,8 @@ int snd_vx_dsp_load(struct vx_core *chip, const struct firmware *dsp)
msleep(200);
if ((err = vx_wait_isr_bit(chip, ISR_CHK)) < 0)
err = vx_wait_isr_bit(chip, ISR_CHK);
if (err < 0)
return err;
vx_toggle_dac_mute(chip, 0);

12
sound/drivers/vx/vx_hwdep.c
View File

@ -78,15 +78,19 @@ int snd_vx_setup_firmware(struct vx_core *chip)
/* ok, we reached to the last one */
/* create the devices if not built yet */
if ((err = snd_vx_pcm_new(chip)) < 0)
err = snd_vx_pcm_new(chip);
if (err < 0)
return err;
if ((err = snd_vx_mixer_new(chip)) < 0)
err = snd_vx_mixer_new(chip);
if (err < 0)
return err;
if (chip->ops->add_controls)
if ((err = chip->ops->add_controls(chip)) < 0)
if (chip->ops->add_controls) {
err = chip->ops->add_controls(chip);
if (err < 0)
return err;
}
chip->chip_status |= VX_STAT_DEVICE_INIT;
chip->chip_status |= VX_STAT_CHIP_INIT;

39
sound/drivers/vx/vx_mixer.c
View File

@ -910,7 +910,8 @@ int snd_vx_mixer_new(struct vx_core *chip)
temp = vx_control_output_level;
temp.index = i;
temp.tlv.p = chip->hw->output_level_db_scale;
if ((err = snd_ctl_add(card, snd_ctl_new1(&temp, chip))) < 0)
err = snd_ctl_add(card, snd_ctl_new1(&temp, chip));
if (err < 0)
return err;
}
@ -921,22 +922,26 @@ int snd_vx_mixer_new(struct vx_core *chip)
temp.index = i;
temp.name = "PCM Playback Volume";
temp.private_value = val;
if ((err = snd_ctl_add(card, snd_ctl_new1(&temp, chip))) < 0)
err = snd_ctl_add(card, snd_ctl_new1(&temp, chip));
if (err < 0)
return err;
temp = vx_control_output_switch;
temp.index = i;
temp.private_value = val;
if ((err = snd_ctl_add(card, snd_ctl_new1(&temp, chip))) < 0)
err = snd_ctl_add(card, snd_ctl_new1(&temp, chip));
if (err < 0)
return err;
temp = vx_control_monitor_gain;
temp.index = i;
temp.private_value = val;
if ((err = snd_ctl_add(card, snd_ctl_new1(&temp, chip))) < 0)
err = snd_ctl_add(card, snd_ctl_new1(&temp, chip));
if (err < 0)
return err;
temp = vx_control_monitor_switch;
temp.index = i;
temp.private_value = val;
if ((err = snd_ctl_add(card, snd_ctl_new1(&temp, chip))) < 0)
err = snd_ctl_add(card, snd_ctl_new1(&temp, chip));
if (err < 0)
return err;
}
for (i = 0; i < chip->hw->num_outs; i++) {
@ -944,20 +949,25 @@ int snd_vx_mixer_new(struct vx_core *chip)
temp.index = i;
temp.name = "PCM Capture Volume";
temp.private_value = (i * 2) | (1 << 8);
if ((err = snd_ctl_add(card, snd_ctl_new1(&temp, chip))) < 0)
err = snd_ctl_add(card, snd_ctl_new1(&temp, chip));
if (err < 0)
return err;
}
/* Audio source */
if ((err = snd_ctl_add(card, snd_ctl_new1(&vx_control_audio_src, chip))) < 0)
err = snd_ctl_add(card, snd_ctl_new1(&vx_control_audio_src, chip));
if (err < 0)
return err;
/* clock mode */
if ((err = snd_ctl_add(card, snd_ctl_new1(&vx_control_clock_mode, chip))) < 0)
err = snd_ctl_add(card, snd_ctl_new1(&vx_control_clock_mode, chip));
if (err < 0)
return err;
/* IEC958 controls */
if ((err = snd_ctl_add(card, snd_ctl_new1(&vx_control_iec958_mask, chip))) < 0)
err = snd_ctl_add(card, snd_ctl_new1(&vx_control_iec958_mask, chip));
if (err < 0)
return err;
if ((err = snd_ctl_add(card, snd_ctl_new1(&vx_control_iec958, chip))) < 0)
err = snd_ctl_add(card, snd_ctl_new1(&vx_control_iec958, chip));
if (err < 0)
return err;
/* VU, peak, saturation meters */
for (c = 0; c < 2; c++) {
@ -968,7 +978,8 @@ int snd_vx_mixer_new(struct vx_core *chip)
temp = vx_control_saturation;
temp.index = i;
temp.private_value = val;
if ((err = snd_ctl_add(card, snd_ctl_new1(&temp, chip))) < 0)
err = snd_ctl_add(card, snd_ctl_new1(&temp, chip));
if (err < 0)
return err;
}
sprintf(name, "%s VU Meter", dir[c]);
@ -976,14 +987,16 @@ int snd_vx_mixer_new(struct vx_core *chip)
temp.index = i;
temp.name = name;
temp.private_value = val;
if ((err = snd_ctl_add(card, snd_ctl_new1(&temp, chip))) < 0)
err = snd_ctl_add(card, snd_ctl_new1(&temp, chip));
if (err < 0)
return err;
sprintf(name, "%s Peak Meter", dir[c]);
temp = vx_control_peak_meter;
temp.index = i;
temp.name = name;
temp.private_value = val;
if ((err = snd_ctl_add(card, snd_ctl_new1(&temp, chip))) < 0)
err = snd_ctl_add(card, snd_ctl_new1(&temp, chip));
if (err < 0)
return err;
}
}

32
sound/drivers/vx/vx_pcm.c
View File

@ -341,10 +341,12 @@ static int vx_toggle_pipe(struct vx_core *chip, struct vx_pipe *pipe, int state)
}
}
if ((err = vx_conf_pipe(chip, pipe)) < 0)
err = vx_conf_pipe(chip, pipe);
if (err < 0)
return err;
if ((err = vx_send_irqa(chip)) < 0)
err = vx_send_irqa(chip);
if (err < 0)
return err;
/* If it completes successfully, wait for the pipes
@ -680,8 +682,9 @@ static void vx_pcm_playback_transfer(struct vx_core *chip,
if (! pipe->prepared || (chip->chip_status & VX_STAT_IS_STALE))
return;
for (i = 0; i < nchunks; i++) {
if ((err = vx_pcm_playback_transfer_chunk(chip, runtime, pipe,
chip->ibl.size)) < 0)
err = vx_pcm_playback_transfer_chunk(chip, runtime, pipe,
chip->ibl.size);
if (err < 0)
return;
}
}
@ -698,7 +701,8 @@ static void vx_pcm_playback_update(struct vx_core *chip,
struct snd_pcm_runtime *runtime = subs->runtime;
if (pipe->running && ! (chip->chip_status & VX_STAT_IS_STALE)) {
if ((err = vx_update_pipe_position(chip, runtime, pipe)) < 0)
err = vx_update_pipe_position(chip, runtime, pipe);
if (err < 0)
return;
if (pipe->transferred >= (int)runtime->period_size) {
pipe->transferred %= runtime->period_size;
@ -747,11 +751,13 @@ static int vx_pcm_trigger(struct snd_pcm_substream *subs, int cmd)
pipe->running = 0;
break;
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
if ((err = vx_toggle_pipe(chip, pipe, 0)) < 0)
err = vx_toggle_pipe(chip, pipe, 0);
if (err < 0)
return err;
break;
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
if ((err = vx_toggle_pipe(chip, pipe, 1)) < 0)
err = vx_toggle_pipe(chip, pipe, 1);
if (err < 0)
return err;
break;
default:
@ -792,13 +798,15 @@ static int vx_pcm_prepare(struct snd_pcm_substream *subs)
snd_printdd(KERN_DEBUG "reopen the pipe with data_mode = %d\n", data_mode);
vx_init_rmh(&rmh, CMD_FREE_PIPE);
vx_set_pipe_cmd_params(&rmh, 0, pipe->number, 0);
if ((err = vx_send_msg(chip, &rmh)) < 0)
err = vx_send_msg(chip, &rmh);
if (err < 0)
return err;
vx_init_rmh(&rmh, CMD_RES_PIPE);
vx_set_pipe_cmd_params(&rmh, 0, pipe->number, pipe->channels);
if (data_mode)
rmh.Cmd[0] |= BIT_DATA_MODE;
if ((err = vx_send_msg(chip, &rmh)) < 0)
err = vx_send_msg(chip, &rmh);
if (err < 0)
return err;
pipe->data_mode = data_mode;
}
@ -810,7 +818,8 @@ static int vx_pcm_prepare(struct snd_pcm_substream *subs)
}
vx_set_clock(chip, runtime->rate);
if ((err = vx_set_format(chip, pipe, runtime)) < 0)
err = vx_set_format(chip, pipe, runtime);
if (err < 0)
return err;
if (vx_is_pcmcia(chip)) {
@ -1187,7 +1196,8 @@ int snd_vx_pcm_new(struct vx_core *chip)
unsigned int i;
int err;
if ((err = vx_init_audio_io(chip)) < 0)
err = vx_init_audio_io(chip);
if (err < 0)
return err;
for (i = 0; i < chip->hw->num_codecs; i++) {