4.14-stable review patch. If anyone has any objections, please let me know.
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From: Kuninori Morimoto kuninori.morimoto.gx@renesas.com
[ Upstream commit 21781e87881f9c420871b1d1f3f29d4cd7bffb10 ]
SSI parent mod might be NULL. ssi_parent_mod() needs to care about it. Otherwise, it uses negative shift. This patch fixes it.
Signed-off-by: Kuninori Morimoto kuninori.morimoto.gx@renesas.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/sh/rcar/ssi.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-)
--- a/sound/soc/sh/rcar/ssi.c +++ b/sound/soc/sh/rcar/ssi.c @@ -198,10 +198,15 @@ static u32 rsnd_ssi_run_mods(struct rsnd { struct rsnd_mod *ssi_mod = rsnd_io_to_mod_ssi(io); struct rsnd_mod *ssi_parent_mod = rsnd_io_to_mod_ssip(io); + u32 mods;
- return rsnd_ssi_multi_slaves_runtime(io) | - 1 << rsnd_mod_id(ssi_mod) | - 1 << rsnd_mod_id(ssi_parent_mod); + mods = rsnd_ssi_multi_slaves_runtime(io) | + 1 << rsnd_mod_id(ssi_mod); + + if (ssi_parent_mod) + mods |= 1 << rsnd_mod_id(ssi_parent_mod); + + return mods; }
u32 rsnd_ssi_multi_slaves_runtime(struct rsnd_dai_stream *io)