diff mbox

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

Message ID 87d1b9y3sk.wl%kuninori.morimoto.gx@renesas.com (mailing list archive)
State Accepted
Commit 8cd8a186eb30c87e0b855cf4823034472413914e
Headers show

Commit Message

Kuninori Morimoto May 16, 2017, 1:48 a.m. UTC
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>

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>
---
 sound/soc/sh/rcar/ssi.c | 5 +++++
 1 file changed, 5 insertions(+)

Comments

Kuninori Morimoto May 17, 2017, 8:11 a.m. UTC | #1
Hi

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

This was

Reported-by: Hiroyuki Yokoyama <hiroyuki.yokoyama.vx@renesas.com>

Mark, please let me know if v2 was required

>  sound/soc/sh/rcar/ssi.c | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/sound/soc/sh/rcar/ssi.c b/sound/soc/sh/rcar/ssi.c
> index 5960042..e23fcab 100644
> --- a/sound/soc/sh/rcar/ssi.c
> +++ b/sound/soc/sh/rcar/ssi.c
> @@ -726,6 +726,11 @@ 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);
> -- 
> 1.9.1
>
diff mbox

Patch

diff --git a/sound/soc/sh/rcar/ssi.c b/sound/soc/sh/rcar/ssi.c
index 5960042..e23fcab 100644
--- a/sound/soc/sh/rcar/ssi.c
+++ b/sound/soc/sh/rcar/ssi.c
@@ -726,6 +726,11 @@  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);