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[04/12] ASoC: rsnd: rsnd_dai_connect() returns error if it connect to existing mod

Message ID 878u4tiy4r.wl%kuninori.morimoto.gx@renesas.com (mailing list archive)
State Accepted
Commit 52dc68524327ed7bedfc2856bca4fa634f11141a
Headers show

Commit Message

Kuninori Morimoto Dec. 17, 2015, 2:56 a.m. UTC 
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
---
 sound/soc/sh/rcar/core.c | 3 +++
 1 file changed, 3 insertions(+)
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Patch

diff --git a/sound/soc/sh/rcar/core.c b/sound/soc/sh/rcar/core.c
index 44f32c1..e59dc8a 100644
--- a/sound/soc/sh/rcar/core.c
+++ b/sound/soc/sh/rcar/core.c
@@ -354,6 +354,9 @@  int rsnd_dai_connect(struct rsnd_mod *mod,
 	if (!mod)
 		return -EIO;
 
+	if (io->mod[type])
+		return -EINVAL;
+
 	priv = rsnd_mod_to_priv(mod);
 	dev = rsnd_priv_to_dev(priv);