[alsa-devel] [PATCH 04/15] ASoC: rsnd: don't update status if rsnd_mod_call() doesn't match

[Kuninori Morimoto]

From: Kuninori Morimoto <kuninori.morimoto.gx at renesas.com>

If system uses CTU/MUX, and if probe error happened, it will try to
call rsnd_dai_call(remove, ...). Then, MUX/DVC/SSIU/SSI might be called
without calling rsnd_dai_call(probe, ...). Then, each mod status might
be un-matched. It doesn't call un-matched remove function by this patch.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx at renesas.com>
---
 sound/soc/sh/rcar/core.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/sound/soc/sh/rcar/core.c b/sound/soc/sh/rcar/core.c
index 691e223..3eb7e9a 100644
--- a/sound/soc/sh/rcar/core.c
+++ b/sound/soc/sh/rcar/core.c
@@ -330,8 +330,11 @@ u32 rsnd_get_dalign(struct rsnd_mod *mod, struct rsnd_dai_stream *io)
 	u8 add  = ((val + __rsnd_mod_add_##func) & 0xF);		\
 	int ret = 0;							\
 	int call = (val == __rsnd_mod_call_##func) && (mod)->ops->func;	\
-	*status = (*status & ~mask) +					\
-		(add << __rsnd_mod_shift_##func);			\
+	if (add == 0xF)							\
+		call = 0;						\
+	else								\
+		*status = (*status & ~mask) +				\
+			(add << __rsnd_mod_shift_##func);		\
 	dev_dbg(dev, "%s[%d]\t0x%08x %s\n",				\
 		rsnd_mod_name(mod), rsnd_mod_id(mod),			\
 		*status, call ? #func : "");				\
-- 
1.9.1