ASoC: fsi: fsi_stream_is_working() care substream->runtime

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

diff --git a/sound/soc/sh/fsi.c b/sound/soc/sh/fsi.c
index 8d05e59..1e10184 100644 (file)
--- a/sound/soc/sh/fsi.c
+++ b/sound/soc/sh/fsi.c
@@ -450,7 +450,7 @@ static int fsi_stream_is_working(struct fsi_priv *fsi,
        int ret;
 
        spin_lock_irqsave(&master->lock, flags);
-       ret = !!io->substream;
+       ret = !!(io->substream && io->substream->runtime);
        spin_unlock_irqrestore(&master->lock, flags);
 
        return ret;
@@ -756,9 +756,7 @@ static int fsi_pio_transfer(struct fsi_priv *fsi, struct fsi_stream *io,
        u8 *buf;
        int over_period;
 
-       if (!fsi                        ||
-           !io->substream              ||
-           !io->substream->runtime)
+       if (!fsi_stream_is_working(fsi, io))
                return -EINVAL;
 
        over_period     = 0;