[PATCH 49/66] ALSA: rme9652: Fix assignment in if condition
Takashi Iwai
tiwai at suse.de
Tue Jun 8 16:05:23 CEST 2021
PCI RME9652 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.
Signed-off-by: Takashi Iwai <tiwai at suse.de>
---
sound/pci/rme9652/rme9652.c | 98 +++++++++++++++++++------------------
1 file changed, 51 insertions(+), 47 deletions(-)
diff --git a/sound/pci/rme9652/rme9652.c b/sound/pci/rme9652/rme9652.c
index 7a4d395abcee..f1aad38760d6 100644
--- a/sound/pci/rme9652/rme9652.c
+++ b/sound/pci/rme9652/rme9652.c
@@ -433,9 +433,9 @@ static int rme9652_set_interrupt_interval(struct snd_rme9652 *s,
spin_lock_irq(&s->lock);
- if ((restart = s->running)) {
+ restart = s->running;
+ if (restart)
rme9652_stop(s);
- }
frames >>= 7;
n = 0;
@@ -518,16 +518,15 @@ static int rme9652_set_rate(struct snd_rme9652 *rme9652, int rate)
return -EBUSY;
}
- if ((restart = rme9652->running)) {
+ restart = rme9652->running;
+ if (restart)
rme9652_stop(rme9652);
- }
rme9652->control_register &= ~(RME9652_freq | RME9652_DS);
rme9652->control_register |= rate;
rme9652_write(rme9652, RME9652_control_register, rme9652->control_register);
- if (restart) {
+ if (restart)
rme9652_start(rme9652);
- }
if (rate & RME9652_DS) {
if (rme9652->ss_channels == RME9652_NCHANNELS) {
@@ -878,15 +877,14 @@ static int rme9652_set_adat1_input(struct snd_rme9652 *rme9652, int internal)
/* XXX do we actually need to stop the card when we do this ? */
- if ((restart = rme9652->running)) {
+ restart = rme9652->running;
+ if (restart)
rme9652_stop(rme9652);
- }
rme9652_write(rme9652, RME9652_control_register, rme9652->control_register);
- if (restart) {
+ if (restart)
rme9652_start(rme9652);
- }
return 0;
}
@@ -943,15 +941,14 @@ static int rme9652_set_spdif_input(struct snd_rme9652 *rme9652, int in)
rme9652->control_register &= ~RME9652_inp;
rme9652->control_register |= rme9652_encode_spdif_in(in);
- if ((restart = rme9652->running)) {
+ restart = rme9652->running;
+ if (restart)
rme9652_stop(rme9652);
- }
rme9652_write(rme9652, RME9652_control_register, rme9652->control_register);
- if (restart) {
+ if (restart)
rme9652_start(rme9652);
- }
return 0;
}
@@ -1010,15 +1007,14 @@ static int rme9652_set_spdif_output(struct snd_rme9652 *rme9652, int out)
rme9652->control_register &= ~RME9652_opt_out;
}
- if ((restart = rme9652->running)) {
+ restart = rme9652->running;
+ if (restart)
rme9652_stop(rme9652);
- }
rme9652_write(rme9652, RME9652_control_register, rme9652->control_register);
- if (restart) {
+ if (restart)
rme9652_start(rme9652);
- }
return 0;
}
@@ -1086,15 +1082,14 @@ static int rme9652_set_sync_mode(struct snd_rme9652 *rme9652, int mode)
break;
}
- if ((restart = rme9652->running)) {
+ restart = rme9652->running;
+ if (restart)
rme9652_stop(rme9652);
- }
rme9652_write(rme9652, RME9652_control_register, rme9652->control_register);
- if (restart) {
+ if (restart)
rme9652_start(rme9652);
- }
return 0;
}
@@ -1173,15 +1168,14 @@ static int rme9652_set_sync_pref(struct snd_rme9652 *rme9652, int pref)
break;
}
- if ((restart = rme9652->running)) {
+ restart = rme9652->running;
+ if (restart)
rme9652_stop(rme9652);
- }
rme9652_write(rme9652, RME9652_control_register, rme9652->control_register);
- if (restart) {
+ if (restart)
rme9652_start(rme9652);
- }
return 0;
}
@@ -1513,19 +1507,27 @@ static int snd_rme9652_create_controls(struct snd_card *card, struct snd_rme9652
struct snd_kcontrol *kctl;
for (idx = 0; idx < ARRAY_SIZE(snd_rme9652_controls); idx++) {
- if ((err = snd_ctl_add(card, kctl = snd_ctl_new1(&snd_rme9652_controls[idx], rme9652))) < 0)
+ kctl = snd_ctl_new1(&snd_rme9652_controls[idx], rme9652);
+ err = snd_ctl_add(card, kctl);
+ if (err < 0)
return err;
if (idx == 1) /* IEC958 (S/PDIF) Stream */
rme9652->spdif_ctl = kctl;
}
- if (rme9652->ss_channels == RME9652_NCHANNELS)
- if ((err = snd_ctl_add(card, kctl = snd_ctl_new1(&snd_rme9652_adat3_check, rme9652))) < 0)
+ if (rme9652->ss_channels == RME9652_NCHANNELS) {
+ kctl = snd_ctl_new1(&snd_rme9652_adat3_check, rme9652);
+ err = snd_ctl_add(card, kctl);
+ if (err < 0)
return err;
+ }
- if (rme9652->hw_rev >= 15)
- if ((err = snd_ctl_add(card, kctl = snd_ctl_new1(&snd_rme9652_adat1_input, rme9652))) < 0)
+ if (rme9652->hw_rev >= 15) {
+ kctl = snd_ctl_new1(&snd_rme9652_adat1_input, rme9652);
+ err = snd_ctl_add(card, kctl);
+ if (err < 0)
return err;
+ }
return 0;
}
@@ -1842,9 +1844,9 @@ static char *rme9652_channel_buffer_location(struct snd_rme9652 *rme9652,
if (snd_BUG_ON(channel < 0 || channel >= RME9652_NCHANNELS))
return NULL;
- if ((mapped_channel = rme9652->channel_map[channel]) < 0) {
+ mapped_channel = rme9652->channel_map[channel];
+ if (mapped_channel < 0)
return NULL;
- }
if (stream == SNDRV_PCM_STREAM_CAPTURE) {
return rme9652->capture_buffer +
@@ -2021,12 +2023,14 @@ static int snd_rme9652_hw_params(struct snd_pcm_substream *substream,
/* how to make sure that the rate matches an externally-set one ?
*/
- if ((err = rme9652_set_rate(rme9652, params_rate(params))) < 0) {
+ err = rme9652_set_rate(rme9652, params_rate(params));
+ if (err < 0) {
_snd_pcm_hw_param_setempty(params, SNDRV_PCM_HW_PARAM_RATE);
return err;
}
- if ((err = rme9652_set_interrupt_interval(rme9652, params_period_size(params))) < 0) {
+ err = rme9652_set_interrupt_interval(rme9652, params_period_size(params));
+ if (err < 0) {
_snd_pcm_hw_param_setempty(params, SNDRV_PCM_HW_PARAM_PERIOD_SIZE);
return err;
}
@@ -2406,11 +2410,9 @@ static int snd_rme9652_create_pcm(struct snd_card *card,
struct snd_pcm *pcm;
int err;
- if ((err = snd_pcm_new(card,
- rme9652->card_name,
- 0, 1, 1, &pcm)) < 0) {
+ err = snd_pcm_new(card, rme9652->card_name, 0, 1, 1, &pcm);
+ if (err < 0)
return err;
- }
rme9652->pcm = pcm;
pcm->private_data = rme9652;
@@ -2450,12 +2452,14 @@ static int snd_rme9652_create(struct snd_card *card,
return -ENODEV;
}
- if ((err = pci_enable_device(pci)) < 0)
+ err = pci_enable_device(pci);
+ if (err < 0)
return err;
spin_lock_init(&rme9652->lock);
- if ((err = pci_request_regions(pci, "rme9652")) < 0)
+ err = pci_request_regions(pci, "rme9652");
+ if (err < 0)
return err;
rme9652->port = pci_resource_start(pci, 0);
rme9652->iobase = ioremap(rme9652->port, RME9652_IO_EXTENT);
@@ -2528,17 +2532,17 @@ static int snd_rme9652_create(struct snd_card *card,
pci_set_master(rme9652->pci);
- if ((err = snd_rme9652_initialize_memory(rme9652)) < 0) {
+ err = snd_rme9652_initialize_memory(rme9652);
+ if (err < 0)
return err;
- }
- if ((err = snd_rme9652_create_pcm(card, rme9652)) < 0) {
+ err = snd_rme9652_create_pcm(card, rme9652);
+ if (err < 0)
return err;
- }
- if ((err = snd_rme9652_create_controls(card, rme9652)) < 0) {
+ err = snd_rme9652_create_controls(card, rme9652);
+ if (err < 0)
return err;
- }
snd_rme9652_proc_init(rme9652);
--
2.26.2
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