ALSA: ctxfi: Neaten get_daio_rsc

Move the pointer declarations into the blocks that use them.
Neaten the kfree calls when the _init functions fail.

Trivially reduces object size (defconfig x86-64)

$ size sound/pci/ctxfi/ctdaio.o.*
text data bss dec hex filename
5287 224 0 5511 1587 sound/pci/ctxfi/ctdaio.o.new
5319 224 0 5543 15a7 sound/pci/ctxfi/ctdaio.o.old

Signed-off-by: Joe Perches <[e-mail]>
Noticed-by: Markus Elfring <[e-mail]>
Signed-off-by: Takashi Iwai <[e-mail]>

sound/pci/ctxfi/ctdaio.c

···
 			struct daio **rdaio)
 {
 	int err;
-	struct dai *dai = NULL;
-	struct dao *dao = NULL;
 	unsigned long flags;
 
 	*rdaio = NULL;
···
 		return err;
 	}
 
+	err = -ENOMEM;
 	/* Allocate mem for daio resource */
 	if (desc->type <= DAIO_OUT_MAX) {
-		dao = kzalloc(sizeof(*dao), GFP_KERNEL);
-		if (!dao) {
-			err = -ENOMEM;
+		struct dao *dao = kzalloc(sizeof(*dao), GFP_KERNEL);
+		if (!dao)
+			goto error;
+
+		err = dao_rsc_init(dao, desc, mgr);
+		if (err) {
+			kfree(dao);
 			goto error;
 		}
-		err = dao_rsc_init(dao, desc, mgr);
-		if (err)
-			goto error;
 
 		*rdaio = &dao->daio;
 	} else {
-		dai = kzalloc(sizeof(*dai), GFP_KERNEL);
-		if (!dai) {
-			err = -ENOMEM;
+		struct dai *dai = kzalloc(sizeof(*dai), GFP_KERNEL);
+		if (!dai)
+			goto error;
+
+		err = dai_rsc_init(dai, desc, mgr);
+		if (err) {
+			kfree(dai);
 			goto error;
 		}
-		err = dai_rsc_init(dai, desc, mgr);
-		if (err)
-			goto error;
 
 		*rdaio = &dai->daio;
 	}
···
 	return 0;
 
 error:
-	if (dao)
-		kfree(dao);
-	else if (dai)
-		kfree(dai);
-
 	spin_lock_irqsave(&mgr->mgr_lock, flags);
 	daio_mgr_put_rsc(&mgr->mgr, desc->type);
 	spin_unlock_irqrestore(&mgr->mgr_lock, flags);