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 --- sound/soc/sh/rcar/adg.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/sound/soc/sh/rcar/adg.c b/sound/soc/sh/rcar/adg.c index 4672688cac32..b7c1f34ec280 100644 --- 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 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;