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From: Takashi Iwai <tiwai@suse.de>
To: alsa-devel@alsa-project.org
Subject: [PATCH 49/66] ALSA: rme9652: Fix assignment in if condition
Date: Tue,  8 Jun 2021 16:05:23 +0200	[thread overview]
Message-ID: <20210608140540.17885-50-tiwai@suse.de> (raw)
In-Reply-To: <20210608140540.17885-1-tiwai@suse.de>

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@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


  parent reply	other threads:[~2021-06-08 14:19 UTC|newest]

Thread overview: 67+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-08 14:04 [PATCH 00/66] ALSA: " Takashi Iwai
2021-06-08 14:04 ` [PATCH 01/66] ALSA: sb: " Takashi Iwai
2021-06-08 14:04 ` [PATCH 02/66] ALSA: sb: Minor coding style fixes Takashi Iwai
2021-06-08 14:04 ` [PATCH 03/66] ALSA: sb: Fix potential double-free of CSP mixer elements Takashi Iwai
2021-06-08 14:04 ` [PATCH 04/66] ALSA: gus: Fix assignment in if condition Takashi Iwai
2021-06-08 14:04 ` [PATCH 05/66] ALSA: ad1816a: " Takashi Iwai
2021-06-08 14:04 ` [PATCH 06/66] ALSA: wavefront: " Takashi Iwai
2021-06-08 14:04 ` [PATCH 07/66] ALSA: cs423x: " Takashi Iwai
2021-06-08 14:04 ` [PATCH 08/66] ALSA: opti9xx: " Takashi Iwai
2021-06-08 14:04 ` [PATCH 09/66] ALSA: opl3sa2: " Takashi Iwai
2021-06-08 14:04 ` [PATCH 10/66] ALSA: es18xx: " Takashi Iwai
2021-06-08 14:04 ` [PATCH 11/66] ALSA: cmi8330: " Takashi Iwai
2021-06-08 14:04 ` [PATCH 12/66] ALSA: als100: " Takashi Iwai
2021-06-08 14:04 ` [PATCH 13/66] ALSA: azt2320: " Takashi Iwai
2021-06-08 14:04 ` [PATCH 14/66] ALSA: isa: " Takashi Iwai
2021-06-08 14:04 ` [PATCH 15/66] ALSA: ad1889: " Takashi Iwai
2021-06-08 14:04 ` [PATCH 16/66] ALSA: ak4531: " Takashi Iwai
2021-06-08 14:04 ` [PATCH 17/66] ALSA: als300: " Takashi Iwai
2021-06-08 14:04 ` [PATCH 18/66] ALSA: als4000: " Takashi Iwai
2021-06-08 14:04 ` [PATCH 19/66] ALSA: atiixp: " Takashi Iwai
2021-06-08 14:04 ` [PATCH 20/66] ALSA: azt3328: " Takashi Iwai
2021-06-08 14:04 ` [PATCH 21/66] ALSA: bt87x: " Takashi Iwai
2021-06-08 14:04 ` [PATCH 22/66] ALSA: cmipci: " Takashi Iwai
2021-06-08 14:04 ` [PATCH 23/66] ALSA: cs4281: " Takashi Iwai
2021-06-08 14:04 ` [PATCH 24/66] ALSA: ens137x: " Takashi Iwai
2021-06-08 14:04 ` [PATCH 25/66] ALSA: es1938: " Takashi Iwai
2021-06-08 14:05 ` [PATCH 26/66] ALSA: es1968: " Takashi Iwai
2021-06-08 14:05 ` [PATCH 27/66] ALSA: fm801: " Takashi Iwai
2021-06-08 14:05 ` [PATCH 28/66] ALSA: intel8x0: " Takashi Iwai
2021-06-08 14:05 ` [PATCH 29/66] ALSA: maestro3: " Takashi Iwai
2021-06-08 14:05 ` [PATCH 30/66] ALSA: rme32: " Takashi Iwai
2021-06-08 14:05 ` [PATCH 31/66] ALSA: rme96: " Takashi Iwai
2021-06-08 14:05 ` [PATCH 32/66] ALSA: sonicvibes: " Takashi Iwai
2021-06-08 14:05 ` [PATCH 33/66] ALSA: via82xx: " Takashi Iwai
2021-06-08 14:05 ` [PATCH 34/66] ALSA: ac97: " Takashi Iwai
2021-06-08 14:05 ` [PATCH 35/66] ALSA: au88x0: " Takashi Iwai
2021-06-08 14:05 ` [PATCH 36/66] ALSA: ca0106: " Takashi Iwai
2021-06-08 14:05 ` [PATCH 37/66] ALSA: cs46xx: " Takashi Iwai
2021-06-08 14:05 ` [PATCH 38/66] ALSA: cs5535audio: " Takashi Iwai
2021-06-08 14:05 ` [PATCH 39/66] ALSA: echoaudio: " Takashi Iwai
2021-06-08 14:05 ` [PATCH 40/66] ALSA: emu10k1: " Takashi Iwai
2021-06-08 14:05 ` [PATCH 41/66] ALSA: emu10k1x: " Takashi Iwai
2021-06-08 14:05 ` [PATCH 42/66] ALSA: ice1712: " Takashi Iwai
2021-06-08 14:05 ` [PATCH 43/66] ALSA: korg1212: " Takashi Iwai
2021-06-08 14:05 ` [PATCH 44/66] ALSA: mixart: " Takashi Iwai
2021-06-08 14:05 ` [PATCH 45/66] ALSA: nm256: " Takashi Iwai
2021-06-08 14:05 ` [PATCH 46/66] ALSA: pcxhr: " Takashi Iwai
2021-06-08 14:05 ` [PATCH 47/66] ALSA: riptide: " Takashi Iwai
2021-06-08 14:05 ` [PATCH 48/66] ALSA: hdsp: " Takashi Iwai
2021-06-08 14:05 ` Takashi Iwai [this message]
2021-06-08 14:05 ` [PATCH 50/66] ALSA: trident: " Takashi Iwai
2021-06-08 14:05 ` [PATCH 51/66] ALSA: vx222: " Takashi Iwai
2021-06-08 14:05 ` [PATCH 52/66] ALSA: ymfpci: " Takashi Iwai
2021-06-08 14:05 ` [PATCH 53/66] ALSA: core: " Takashi Iwai
2021-06-08 14:05 ` [PATCH 54/66] ALSA: pcm: " Takashi Iwai
2021-06-08 14:05 ` [PATCH 55/66] ALSA: oss: " Takashi Iwai
2021-06-08 14:05 ` [PATCH 56/66] ALSA: seq: " Takashi Iwai
2021-06-08 14:05 ` [PATCH 57/66] ALSA: pcmcia: " Takashi Iwai
2021-06-08 14:05 ` [PATCH 58/66] ALSA: sparc: " Takashi Iwai
2021-06-08 14:05 ` [PATCH 59/66] ALSA: mpu401: " Takashi Iwai
2021-06-08 14:05 ` [PATCH 60/66] ALSA: vx: " Takashi Iwai
2021-06-08 14:05 ` [PATCH 61/66] ALSA: opl3: " Takashi Iwai
2021-06-08 14:05 ` [PATCH 62/66] ALSA: serial: " Takashi Iwai
2021-06-08 14:05 ` [PATCH 63/66] ALSA: synth: " Takashi Iwai
2021-06-08 14:05 ` [PATCH 64/66] ALSA: poewrmac: " Takashi Iwai
2021-06-08 14:05 ` [PATCH 65/66] ALSA: i2c: " Takashi Iwai
2021-06-08 14:05 ` [PATCH 66/66] ALSA: parisc: " Takashi Iwai

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