ALSA: parisc: Fix assignment in if condition

PARISC harmony driver code contains an assignment 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/20210608140540.17885-67-tiwai@suse.deSigned-off-by: Takashi Iwai <tiwai@suse.de>

sound/parisc/harmony.c

@@ -915,10 +915,9 @@ snd_harmony_create(struct snd_card *card,
 	spin_lock_init(&h->mixer_lock);
 	spin_lock_init(&h->lock);
 
-        if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL,
-                                  h, &ops)) < 0) {
-                goto free_and_ret;
-        }
+	err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, h, &ops);
+	if (err < 0)
+		goto free_and_ret;
 
 	*rchip = h;