ASoC: renesas: rz-ssi: Fix playback and capture

In the current codebase the rz_ssi_stream_get() is called at the beginning
of rz_ssi_dai_trigger() before rz_ssi_stream_init() is called.
Since rz_ssi_stream_init() sets the ssi->{playback, capture}->substream,
relying on it in rz_ssi_stream_get() is incorrect. Fix this by checking
substream->stream instead as the original code did.

Fixes: 53dfb2a ("ASoC: renesas: rz-ssi: Simplify the logic in rz_ssi_stream_is_play()")
Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Link: https://patch.msgid.link/20260213172434.3801015-1-claudiu.beznea.uj@bp.renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

Author: claudiubeznea

sound/soc/renesas/rz-ssi.c

@@ -180,7 +180,7 @@ static inline bool rz_ssi_stream_is_play(struct snd_pcm_substream *substream)
 static inline struct rz_ssi_stream *
 rz_ssi_stream_get(struct rz_ssi_priv *ssi, struct snd_pcm_substream *substream)
 {
-	return (ssi->playback.substream == substream) ? &ssi->playback : &ssi->capture;
+	return (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) ? &ssi->playback : &ssi->capture;
 }
 
 static inline bool rz_ssi_is_dma_enabled(struct rz_ssi_priv *ssi)