| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.18 075/135] ASoC: rsnd: adg: care clock-frequency size | Date | Tue, 16 Oct 2018 19:05:05 +0200 |
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4.18-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 69235ccf491d2e26aefd465c0d3ccd1e3b2a9a9c ]
ADG has buffer over flow bug if DT has more than 3 clock-frequency. This patch fixup this issue, and uses first 2 values.
clock-frequency = <x y>; /* this is OK */ clock-frequency = <x y z>; /* this is NG */
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Tested-by: Hiroyuki Yokoyama <hiroyuki.yokoyama.vx@renesas.com> Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- sound/soc/sh/rcar/adg.c | 5 +++++ 1 file changed, 5 insertions(+)
--- a/sound/soc/sh/rcar/adg.c +++ b/sound/soc/sh/rcar/adg.c @@ -465,6 +465,11 @@ static void rsnd_adg_get_clkout(struct r goto rsnd_adg_get_clkout_end; req_size = prop->length / sizeof(u32); + if (req_size > REQ_SIZE) { + dev_err(dev, + "too many clock-frequency, use top %d\n", REQ_SIZE); + req_size = REQ_SIZE; + } of_property_read_u32_array(np, "clock-frequency", req_rate, req_size); req_48kHz_rate = 0;
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