4.9-stable review patch. If anyone has any objections, please let me know.
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From: Arnaud Pouliquen arnaud.pouliquen@st.com
[ Upstream commit 3c9d3f1bc2defd418b5933bbc928096c9c686d3b ]
reader->substream is used in IRQ handler for error case but is never set. Set value to pcm substream on DAI startup and clean it on dai shutdown.
Signed-off-by: Arnaud Pouliquen arnaud.pouliquen@st.com Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin alexander.levin@verizon.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- sound/soc/sti/uniperif_reader.c | 3 +++ 1 file changed, 3 insertions(+)
--- a/sound/soc/sti/uniperif_reader.c +++ b/sound/soc/sti/uniperif_reader.c @@ -364,6 +364,8 @@ static int uni_reader_startup(struct snd struct uniperif *reader = priv->dai_data.uni; int ret;
+ reader->substream = substream; + if (!UNIPERIF_TYPE_IS_TDM(reader)) return 0;
@@ -393,6 +395,7 @@ static void uni_reader_shutdown(struct s /* Stop the reader */ uni_reader_stop(reader); } + reader->substream = NULL; }
static const struct snd_soc_dai_ops uni_reader_dai_ops = {