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ASoC: swr-dmic: fix kw error in dmic_swr_ctrl

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Add array bounds check for index before accessing
tx_master_port_map.

Change-Id: I52a8dbdaf40974a45e86b3dca4caa27d88a7b864
Signed-off-by: Vignesh Kulothungan <vigneshk@codeaurora.org>
This commit is contained in:
Vignesh Kulothungan
2020-09-11 10:34:34 -07:00
parent 3944bb8d29
commit d6ccb466fb
1 changed files with 8 additions and 1 deletions
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9
asoc/codecs/swr-dmic.c
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@@ -220,11 +220,18 @@ static int dmic_swr_ctrl(struct snd_soc_dapm_widget *w,
u8 port_type = 0;
u8 port_id = w->shift;
if (port_id >= SWR_DMIC_MAX_PORTS)
{
dev_err(component->dev, "%s: invalid port id: %d\n",
__func__, port_id);
return -EINVAL;
}
/*
* Port 1 is high quality / 2.4 or 3.072 Mbps
* Port 2 is listen low power / 0.6 or 0.768 Mbps
*/
if(port_id == SWR_DMIC_HIFI_PORT)
if (port_id == SWR_DMIC_HIFI_PORT)
ch_rate = SWR_CLK_RATE_2P4MHZ;
else
ch_rate = SWR_CLK_RATE_0P6MHZ;