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ASoC: apr: Add validity check to APR port 

Add boundary checks for APR port received from ADSP.

CRs-Fixed: 2143207
Change-Id: I9a7fa39ee223e1859323caa6eb74c1c8a26a041d
Signed-off-by: Aditya Bavanari <abavanar@codeaurora.org>
This commit is contained in:
Aditya Bavanari 2017-12-19 20:34:26 +05:30 committed by LuK1337
parent a178120006
commit dc680cc69f
1 changed files with 2 additions and 1 deletions
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3
drivers/soc/qcom/qdsp6v2/apr.c
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@ -613,7 +613,8 @@ void apr_cb_func(void *buf, int len, void *priv)
temp_port = ((data.dest_port >> 8) * 8) + (data.dest_port & 0xFF);
pr_debug("port = %d t_port = %d\n", data.src_port, temp_port);
if (c_svc->port_cnt && c_svc->port_fn[temp_port])
if (((temp_port >= 0) && (temp_port < APR_MAX_PORTS))
&& (c_svc->port_cnt && c_svc->port_fn[temp_port]))
c_svc->port_fn[temp_port](&data, c_svc->port_priv[temp_port]);
else if (c_svc->fn)
c_svc->fn(&data, c_svc->priv);