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 <[email protected]> Tested-by: Hiroyuki Yokoyama <[email protected]> Reported-by: Hiroyuki Yokoyama <[email protected]> Signed-off-by: Mark Brown <[email protected]>
modi0012 · May 19, 2017 · 1f8754d · 1f8754d
1 parent 90431eb
commit 1f8754d
Showing 1 changed file with 5 additions and 0 deletions.
diff --git 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);