ASoC: Refactor some conditions and loop in soc_bind_dai_link()

Transform some loops from:

for_each(x) {
    if (f(x)) {
        work_on(x);
    }
}

to new structure:

for_each(x) {
    if (!f(x))
        continue;

    work_on(x);
}

This will allow future modification of f(x) with less impact to the code.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 5195f06..ebb1048 100644 (file)
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -763,10 +763,11 @@ static int soc_bind_dai_link(struct snd_soc_card *card, int num)
        }
        /* no, then find CPU DAI from registered DAIs*/
        list_for_each_entry(cpu_dai, &dai_list, list) {
-               if (!strcmp(cpu_dai->name, dai_link->cpu_dai_name)) {
-                       rtd->cpu_dai = cpu_dai;
-                       goto find_codec;
-               }
+               if (strcmp(cpu_dai->name, dai_link->cpu_dai_name))
+                       continue;
+
+               rtd->cpu_dai = cpu_dai;
+               goto find_codec;
        }
        dev_dbg(card->dev, "CPU DAI %s not registered\n",
                        dai_link->cpu_dai_name);
@@ -779,22 +780,28 @@ find_codec:
 
        /* no, then find CODEC from registered CODECs*/
        list_for_each_entry(codec, &codec_list, list) {
-               if (!strcmp(codec->name, dai_link->codec_name)) {
-                       rtd->codec = codec;
-
-                       /* CODEC found, so find CODEC DAI from registered DAIs from this CODEC*/
-                       list_for_each_entry(codec_dai, &dai_list, list) {
-                               if (codec->dev == codec_dai->dev &&
-                                               !strcmp(codec_dai->name, dai_link->codec_dai_name)) {
-                                       rtd->codec_dai = codec_dai;
-                                       goto find_platform;
-                               }
-                       }
-                       dev_dbg(card->dev, "CODEC DAI %s not registered\n",
-                                       dai_link->codec_dai_name);
+               if (strcmp(codec->name, dai_link->codec_name))
+                       continue;
+
+               rtd->codec = codec;
 
-                       goto find_platform;
+               /*
+                * CODEC found, so find CODEC DAI from registered DAIs from
+                * this CODEC
+                */
+               list_for_each_entry(codec_dai, &dai_list, list) {
+                       if (codec->dev == codec_dai->dev &&
+                               !strcmp(codec_dai->name,
+                                       dai_link->codec_dai_name)) {
+
+                               rtd->codec_dai = codec_dai;
+                               goto find_platform;
+                       }
                }
+               dev_dbg(card->dev, "CODEC DAI %s not registered\n",
+                               dai_link->codec_dai_name);
+
+               goto find_platform;
        }
        dev_dbg(card->dev, "CODEC %s not registered\n",
                        dai_link->codec_name);
@@ -811,10 +818,11 @@ find_platform:
 
        /* no, then find one from the set of registered platforms */
        list_for_each_entry(platform, &platform_list, list) {
-               if (!strcmp(platform->name, platform_name)) {
-                       rtd->platform = platform;
-                       goto out;
-               }
+               if (strcmp(platform->name, platform_name))
+                       continue;
+
+               rtd->platform = platform;
+               goto out;
        }
 
        dev_dbg(card->dev, "platform %s not registered\n",