[PATCH v2 4/5] ASoC: sh: rz-ssi: Change return type of rz_ssi_stream_is_valid() to bool

[Lad Prabhakar]

rz_ssi_stream_is_valid() never returns an int, it returns the result of
a condition which is either true or false.

While at it, drop "!!" as the expression is boolean.

Reported-by: Pavel Machek <pavel at denx.de>
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj at bp.renesas.com>
Reviewed-by: Biju Das <biju.das.jz at bp.renesas.com>
---
v1->v2
* No change
---
 sound/soc/sh/rz-ssi.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/sound/soc/sh/rz-ssi.c b/sound/soc/sh/rz-ssi.c
index 50699e94772b..2da43eecfb3e 100644
--- a/sound/soc/sh/rz-ssi.c
+++ b/sound/soc/sh/rz-ssi.c
@@ -188,14 +188,14 @@ static inline bool rz_ssi_is_dma_enabled(struct rz_ssi_priv *ssi)
 	return (ssi->playback.dma_ch && (ssi->dma_rt || ssi->capture.dma_ch));
 }
 
-static int rz_ssi_stream_is_valid(struct rz_ssi_priv *ssi,
-				  struct rz_ssi_stream *strm)
+static bool rz_ssi_stream_is_valid(struct rz_ssi_priv *ssi,
+				   struct rz_ssi_stream *strm)
 {
 	unsigned long flags;
-	int ret;
+	bool ret;
 
 	spin_lock_irqsave(&ssi->lock, flags);
-	ret = !!(strm->substream && strm->substream->runtime);
+	ret = strm->substream && strm->substream->runtime;
 	spin_unlock_irqrestore(&ssi->lock, flags);
 
 	return ret;
-- 
2.17.1