ASoC: rsnd: don't call free_irq() on Parent SSI

If SSI uses shared pin, some SSI will be used as parent SSI.
Then, normal SSI's remove and Parent SSI's remove
(these are same SSI) will be called when unbind or remove timing.
In this case, free_irq() will be called twice.
This patch solve this issue.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: Hiroyuki Yokoyama <hiroyuki.yokoyama.vx@renesas.com>
Reported-by: Hiroyuki Yokoyama <hiroyuki.yokoyama.vx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/sh/rcar/ssi.c b/sound/soc/sh/rcar/ssi.c
index 135c5669f7963bd228c9a1187bc6f5dfd13bc04e..03867353d10cb701551bfba553078c043a71b231 100644 (file)
--- a/sound/soc/sh/rcar/ssi.c
+++ b/sound/soc/sh/rcar/ssi.c
@@ -709,6 +709,11 @@ static int rsnd_ssi_dma_remove(struct rsnd_mod *mod,
                               struct rsnd_priv *priv)
 {
        struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod);
+       struct rsnd_mod *ssi_parent_mod = rsnd_io_to_mod_ssip(io);
+
+       /* Do nothing for SSI parent mod */
+       if (ssi_parent_mod == mod)
+               return 0;
 
        /* PIO will request IRQ again */
        free_irq(ssi->irq, mod);