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Commit ad9ad950 authored by Kuninori Morimoto's avatar Kuninori Morimoto Committed by Greg Kroah-Hartman
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ASoC: rsnd: adg: care clock-frequency size 



[ Upstream commit 69235ccf ]

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: default avatarKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: default avatarHiroyuki Yokoyama <hiroyuki.yokoyama.vx@renesas.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
Signed-off-by: default avatarSasha Levin <alexander.levin@microsoft.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 6d52f3e1

sound/soc/sh/rcar/adg.c

+5 −0
Original line number Diff line number Diff line
@@ -467,6 +467,11 @@ static void rsnd_adg_get_clkout(struct rsnd_priv *priv, 
		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;