ALSA: sparc: Fix assignment in if condition

SPARC drivers contain 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/20210608140540.17885-59-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/sparc/amd7930.c

@@ -975,8 +975,9 @@ static int snd_amd7930_create(struct snd_card *card,
 
 	spin_unlock_irqrestore(&amd->lock, flags);
 
-	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL,
-				  amd, &snd_amd7930_dev_ops)) < 0) {
+	err = snd_device_new(card, SNDRV_DEV_LOWLEVEL,
+			     amd, &snd_amd7930_dev_ops);
+	if (err < 0) {
 		snd_amd7930_free(amd);
 		return err;
 	}
@@ -1019,13 +1020,16 @@ static int amd7930_sbus_probe(struct platform_device *op)
 				      irq, dev_num, &amd)) < 0)
 		goto out_err;
 
-	if ((err = snd_amd7930_pcm(amd)) < 0)
+	err = snd_amd7930_pcm(amd);
+	if (err < 0)
 		goto out_err;
 
-	if ((err = snd_amd7930_mixer(amd)) < 0)
+	err = snd_amd7930_mixer(amd);
+	if (err < 0)
 		goto out_err;
 
-	if ((err = snd_card_register(card)) < 0)
+	err = snd_card_register(card);
+	if (err < 0)
 		goto out_err;
 
 	amd->next = amd7930_list;

sound/sparc/cs4231.c

@@ -1828,8 +1828,9 @@ static int snd_cs4231_sbus_create(struct snd_card *card,
 	}
 	snd_cs4231_init(chip);
 
-	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL,
-				  chip, &snd_cs4231_sbus_dev_ops)) < 0) {
+	err = snd_device_new(card, SNDRV_DEV_LOWLEVEL,
+			     chip, &snd_cs4231_sbus_dev_ops);
+	if (err < 0) {
 		snd_cs4231_sbus_free(chip);
 		return err;
 	}
@@ -2020,8 +2021,9 @@ static int snd_cs4231_ebus_create(struct snd_card *card,
 	}
 	snd_cs4231_init(chip);
 
-	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL,
-				  chip, &snd_cs4231_ebus_dev_ops)) < 0) {
+	err = snd_device_new(card, SNDRV_DEV_LOWLEVEL,
+			     chip, &snd_cs4231_ebus_dev_ops);
+	if (err < 0) {
 		snd_cs4231_ebus_free(chip);
 		return err;
 	}

sound/sparc/dbri.c

@@ -2226,11 +2226,12 @@ static int snd_dbri_pcm(struct snd_card *card)
 	struct snd_pcm *pcm;
 	int err;
 
-	if ((err = snd_pcm_new(card,
+	err = snd_pcm_new(card,
 			  /* ID */	    "sun_dbri",
 			  /* device */	    0,
 			  /* playback count */ 1,
-			       /* capture count */  1, &pcm)) < 0)
+			  /* capture count */  1, &pcm);
+	if (err < 0)
 		return err;
 
 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_dbri_ops);