ASoC: soc-cache: Return -ENOSYS instead of -EINVAL

These functions fail with -EINVAL if the corresponding callbacks
are not implemented.  Change them to return -ENOSYS as it is more
appropriate for unimplemented callbacks.

Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

diff --git a/sound/soc/soc-cache.c b/sound/soc/soc-cache.c
index d7bffdd..258c3b2 100644 (file)
--- a/sound/soc/soc-cache.c
+++ b/sound/soc/soc-cache.c
@@ -1295,7 +1295,7 @@ int snd_soc_cache_init(struct snd_soc_codec *codec)
                                codec->cache_ops->name, codec->name);
                return codec->cache_ops->init(codec);
        }
-       return -EINVAL;
+       return -ENOSYS;
 }
 
 /*
@@ -1310,7 +1310,7 @@ int snd_soc_cache_exit(struct snd_soc_codec *codec)
                                codec->cache_ops->name, codec->name);
                return codec->cache_ops->exit(codec);
        }
-       return -EINVAL;
+       return -ENOSYS;
 }
 
 /**
@@ -1334,7 +1334,7 @@ int snd_soc_cache_read(struct snd_soc_codec *codec,
        }
 
        mutex_unlock(&codec->cache_rw_mutex);
-       return -EINVAL;
+       return -ENOSYS;
 }
 EXPORT_SYMBOL_GPL(snd_soc_cache_read);
 
@@ -1359,7 +1359,7 @@ int snd_soc_cache_write(struct snd_soc_codec *codec,
        }
 
        mutex_unlock(&codec->cache_rw_mutex);
-       return -EINVAL;
+       return -ENOSYS;
 }
 EXPORT_SYMBOL_GPL(snd_soc_cache_write);
 
@@ -1382,7 +1382,7 @@ int snd_soc_cache_sync(struct snd_soc_codec *codec)
        }
 
        if (!codec->cache_ops || !codec->cache_ops->sync)
-               return -EINVAL;
+               return -ENOSYS;
 
        if (codec->cache_ops->name)
                name = codec->cache_ops->name;