Commit 6bf66b1c authored Dec 07, 2016 by Kuninori Morimoto Committed by Mark Brown Dec 07, 2016

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>

parent 3ce2959d

sound/soc/sh/rcar/ssi.c

+6 −3

Original line number	Diff line number	Diff line
		@@ -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.
		*/