This is a note to let you know that I've just added the patch titled

ASoC: STI: Fix reader substream pointer set

to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...

The filename of the patch is: asoc-sti-fix-reader-substream-pointer-set.patch and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.

From foo@baz Thu Dec 21 09:02:40 CET 2017

From: Arnaud Pouliquen arnaud.pouliquen@st.com Date: Thu, 23 Mar 2017 19:39:54 +0100 Subject: ASoC: STI: Fix reader substream pointer set

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 = {

Patches currently in stable-queue which might be from arnaud.pouliquen@st.com are

queue-4.9/asoc-sti-fix-reader-substream-pointer-set.patch