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 <joe@perches.com>
Noticed-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/pci/ctxfi/ctdaio.c b/sound/pci/ctxfi/ctdaio.c
index c1c3f88..9b87dd2 100644 (file)
--- a/sound/pci/ctxfi/ctdaio.c
+++ b/sound/pci/ctxfi/ctdaio.c
@@ -528,8 +528,6 @@ static int get_daio_rsc(struct daio_mgr *mgr,
                        struct daio **rdaio)
 {
        int err;
-       struct dai *dai = NULL;
-       struct dao *dao = NULL;
        unsigned long flags;
 
        *rdaio = NULL;
@@ -544,27 +542,30 @@ static int get_daio_rsc(struct daio_mgr *mgr,
                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)
+               if (err) {
+                       kfree(dao);
                        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)
+               if (err) {
+                       kfree(dai);
                        goto error;
+               }
 
                *rdaio = &dai->daio;
        }
@@ -575,11 +576,6 @@ static int get_daio_rsc(struct daio_mgr *mgr,
        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);