ASoC: renesas: rz-ssi: Use guard() for spin locks

Clean up the code using guard() for spin locks.
Merely code refactoring, and no behavior change.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Message-ID: <87frcx1yp5.wl-kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

Author: morimoto

sound/soc/renesas/rz-ssi.c

@@ -188,24 +188,18 @@ static void rz_ssi_set_substream(struct rz_ssi_stream *strm,
 				 struct snd_pcm_substream *substream)
 {
 	struct rz_ssi_priv *ssi = strm->priv;
-	unsigned long flags;
 
-	spin_lock_irqsave(&ssi->lock, flags);
+	guard(spinlock_irqsave)(&ssi->lock);
+
 	strm->substream = substream;
-	spin_unlock_irqrestore(&ssi->lock, flags);
 }
 
 static bool rz_ssi_stream_is_valid(struct rz_ssi_priv *ssi,
 				   struct rz_ssi_stream *strm)
 {
-	unsigned long flags;
-	bool ret;
-
-	spin_lock_irqsave(&ssi->lock, flags);
-	ret = strm->substream && strm->substream->runtime;
-	spin_unlock_irqrestore(&ssi->lock, flags);
+	guard(spinlock_irqsave)(&ssi->lock);
 
-	return ret;
+	return strm->substream && strm->substream->runtime;
 }
 
 static inline bool rz_ssi_is_stream_running(struct rz_ssi_stream *strm)