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asoc: Add check for valid backend index

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Add check for valid backend index in
msm_routing_put_port_chmap_mixer.

Change-Id: I8cda2313a38aaacc5255b47321ccfd0d573e1cfb
Signed-off-by: Rohit kumar <rohitkr@codeaurora.org>
This commit is contained in:
Rohit kumar 2019-04-30 13:31:25 +05:30 • committed by Gerrit - the friendly Code Review server
commit 2b4cbd8cda
1 changed files with 5 additions and 0 deletions
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5
asoc/msm-pcm-routing-v2.c
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@ -28870,6 +28870,11 @@ static int msm_routing_put_port_chmap_mixer(struct snd_kcontrol *kcontrol,
uint32_t be_idx = ucontrol->value.integer.value[0];
int i;
if (be_idx >= MSM_BACKEND_DAI_MAX) {
pr_err("%s: Invalid Backend index %d\n", __func__, be_idx);
return -EINVAL;
}
for (i = 0; i < PCM_FORMAT_MAX_NUM_CHANNEL_V8; i++) {
channel_map[i] = (char)(ucontrol->value.integer.value[i + 1]);
if (channel_map[i] > PCM_MAX_CHMAP_ID) {