It makes it easier for common code to work with snd_soc_dai_set_channel_map() by distinguishing between operation not being supported and an error. This is done inline with others snd_soc_dai.* apis.
Signed-off-by: Srinivas Kandagatla srinivas.kandagatla@linaro.org --- sound/soc/soc-core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index f08bef7328d7..62aae5a5c14b 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -2688,7 +2688,7 @@ int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai, return dai->driver->ops->set_channel_map(dai, tx_num, tx_slot, rx_num, rx_slot); else - return -EINVAL; + return -ENOTSUPP; } EXPORT_SYMBOL_GPL(snd_soc_dai_set_channel_map);