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Date: Mon, 18 Dec 2017 16:49:23 +0100 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>, Mark Brown <broonie@...nel.org>, Sasha Levin <alexander.levin@...izon.com> Subject: [PATCH 4.9 140/177] ASoC: rsnd: rsnd_ssi_run_mods() needs to care ssi_parent_mod 4.9-stable review patch. If anyone has any objections, please let me know. ------------------ From: Kuninori Morimoto <kuninori.morimoto.gx@...esas.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@...esas.com> Signed-off-by: Mark Brown <broonie@...nel.org> Signed-off-by: Sasha Levin <alexander.levin@...izon.com> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.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 @@ -172,10 +172,15 @@ 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)
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