This commit is contained in:
Mark Brown 2018-03-12 11:02:30 -07:00
commit 3600cd78d7
No known key found for this signature in database
GPG key ID: 24D68B725D5487D0
2 changed files with 24 additions and 9 deletions

View file

@ -1807,6 +1807,7 @@ int snd_soc_of_get_dai_name(struct device_node *of_node,
int snd_soc_of_get_dai_link_codecs(struct device *dev,
struct device_node *of_node,
struct snd_soc_dai_link *dai_link);
void snd_soc_of_put_dai_link_codecs(struct snd_soc_dai_link *dai_link);
int snd_soc_add_dai_link(struct snd_soc_card *card,
struct snd_soc_dai_link *dai_link);

View file

@ -4392,6 +4392,26 @@ int snd_soc_of_get_dai_name(struct device_node *of_node,
}
EXPORT_SYMBOL_GPL(snd_soc_of_get_dai_name);
/*
* snd_soc_of_put_dai_link_codecs - Dereference device nodes in the codecs array
* @dai_link: DAI link
*
* Dereference device nodes acquired by snd_soc_of_get_dai_link_codecs().
*/
void snd_soc_of_put_dai_link_codecs(struct snd_soc_dai_link *dai_link)
{
struct snd_soc_dai_link_component *component = dai_link->codecs;
int index;
for (index = 0; index < dai_link->num_codecs; index++, component++) {
if (!component->of_node)
break;
of_node_put(component->of_node);
component->of_node = NULL;
}
}
EXPORT_SYMBOL_GPL(snd_soc_of_put_dai_link_codecs);
/*
* snd_soc_of_get_dai_link_codecs - Parse a list of CODECs in the devicetree
* @dev: Card device
@ -4401,7 +4421,8 @@ EXPORT_SYMBOL_GPL(snd_soc_of_get_dai_name);
* Builds an array of CODEC DAI components from the DAI link property
* 'sound-dai'.
* The array is set in the DAI link and the number of DAIs is set accordingly.
* The device nodes in the array (of_node) must be dereferenced by the caller.
* The device nodes in the array (of_node) must be dereferenced by calling
* snd_soc_of_put_dai_link_codecs() on @dai_link.
*
* Returns 0 for success
*/
@ -4449,14 +4470,7 @@ int snd_soc_of_get_dai_link_codecs(struct device *dev,
}
return 0;
err:
for (index = 0, component = dai_link->codecs;
index < dai_link->num_codecs;
index++, component++) {
if (!component->of_node)
break;
of_node_put(component->of_node);
component->of_node = NULL;
}
snd_soc_of_put_dai_link_codecs(dai_link);
dai_link->codecs = NULL;
dai_link->num_codecs = 0;
return ret;