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| author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2018-09-06 03:21:33 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-10-18 09:16:21 +0200 |
| commit | ad9ad950a37bd6038ff61244d1a3c7c471399335 (patch) | |
| tree | 85df40990e0fef303978f739e6889232459188f6 | |
| parent | 6d52f3e1e729116b686d61481f85ff9c204c77a3 (diff) | |
| download | linux-stable-ad9ad950a37bd6038ff61244d1a3c7c471399335.tar.gz linux-stable-ad9ad950a37bd6038ff61244d1a3c7c471399335.tar.bz2 linux-stable-ad9ad950a37bd6038ff61244d1a3c7c471399335.zip | |
ASoC: rsnd: adg: care clock-frequency size
[ 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>
| -rw-r--r-- | sound/soc/sh/rcar/adg.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/sound/soc/sh/rcar/adg.c b/sound/soc/sh/rcar/adg.c index e28edb1f7263..eb7879bcc6a7 100644 --- a/sound/soc/sh/rcar/adg.c +++ b/sound/soc/sh/rcar/adg.c @@ -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; |