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ASoC: rsnd: tidyup ssi->usrcnt counter check in hw_params 

ssi->usrcnt will be updated on snd_soc_dai_ops::trigger,
but snd_pcm_ops::hw_params will be called *before* it.
Thus, ssi->usrcnt is still 0 when 1st call.
rsnd_ssi_hw_params() needs to check its called count, this means
trigger should be if (ssi->usrcnt) instead of if (ssi->usrcnt > 1).

Reported-by: Nguyen Viet Dung <nv-dung@jinso.co.jp>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Kuninori Morimoto 2016-12-07 02:05:22 +00:00 committed by Mark Brown
parent 3ce2959d16
commit 6bf66b1c35
1 changed files with 6 additions and 3 deletions
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9
sound/soc/sh/rcar/ssi.c
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@ -417,11 +417,14 @@ static int rsnd_ssi_hw_params(struct rsnd_mod *mod,
int chan = params_channels(params);
/*
* Already working.
* It will happen if SSI has parent/child connection.
* snd_pcm_ops::hw_params will be called *before*
* snd_soc_dai_ops::trigger. Thus, ssi->usrcnt is 0
* in 1st call.
*/
if (ssi->usrcnt > 1) {
if (ssi->usrcnt) {
/*
* Already working.
* It will happen if SSI has parent/child connection.
* it is error if child <-> parent SSI uses
* different channels.
*/