ALSA: control: Use standard printk helpers

Use dev_err() & co as much as possible. If not available (no device
assigned at the calling point), use pr_xxx() helpers instead.

Signed-off-by: Takashi Iwai <[e-mail]>

sound/core/control.c

···
 			ev->mask = mask;
 			list_add_tail(&ev->list, &ctl->events);
 		} else {
-			snd_printk(KERN_ERR "No memory available to allocate event\n");
+			dev_err(card->dev, "No memory available to allocate event\n");
 		}
 	_found:
 		wake_up(&ctl->change_sleep);
···
 
 	kctl = kzalloc(sizeof(*kctl) + sizeof(struct snd_kcontrol_volatile) * control->count, GFP_KERNEL);
 	if (kctl == NULL) {
-		snd_printk(KERN_ERR "Cannot allocate control instance\n");
+		pr_err("ALSA: Cannot allocate control instance\n");
 		return NULL;
 	}
 	*kctl = *control;
···
 	if (ncontrol->name) {
 		strlcpy(kctl.id.name, ncontrol->name, sizeof(kctl.id.name));
 		if (strcmp(ncontrol->name, kctl.id.name) != 0)
-			snd_printk(KERN_WARNING
-				   "Control name '%s' truncated to '%s'\n",
-				   ncontrol->name, kctl.id.name);
+			pr_warn("ALSA: Control name '%s' truncated to '%s'\n",
+				ncontrol->name, kctl.id.name);
 	}
 	kctl.id.index = ncontrol->index;
 	kctl.count = ncontrol->count ? ncontrol->count : 1;
···
 	while (snd_ctl_remove_numid_conflict(card, count)) {
 		if (--iter == 0) {
 			/* this situation is very unlikely */
-			snd_printk(KERN_ERR "unable to allocate new control numid\n");
+			dev_err(card->dev, "unable to allocate new control numid\n");
 			return -ENOMEM;
 		}
 	}
···
 	down_write(&card->controls_rwsem);
 	if (snd_ctl_find_id(card, &id)) {
 		up_write(&card->controls_rwsem);
-		snd_printd(KERN_ERR "control %i:%i:%i:%s:%i is already present\n",
+		dev_err(card->dev, "control %i:%i:%i:%s:%i is already present\n",
 					id.iface,
 					id.device,
 					id.subdevice,
···
 		}
 	}
 	up_read(&snd_ioctl_rwsem);
-	snd_printdd("unknown ioctl = 0x%x\n", cmd);
+	dev_dbg(card->dev, "unknown ioctl = 0x%x\n", cmd);
 	return -ENOTTY;
 }
 

sound/core/control_compat.c

···
 	} else {
 		size = get_elem_size(type, count);
 		if (size < 0) {
-			printk(KERN_ERR "snd_ioctl32_ctl_elem_value: unknown type %d\n", type);
+			dev_err(card->dev, "snd_ioctl32_ctl_elem_value: unknown type %d\n", type);
 			return -EINVAL;
 		}
 		if (copy_from_user(data->value.bytes.data,