4.9-stable review patch. If anyone has any objections, please let me know.
------------------ From: Arnaud Pouliquen <[email protected]> [ 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 <[email protected]> Signed-off-by: Mark Brown <[email protected]> Signed-off-by: Sasha Levin <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- 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 = {
