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dsp: afe: Add check for num_channels

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Check for valid num_channels before accessing.

Change-Id: I8f39d12e2f5f52fa145fbd3aed2b023afaa2b53b
Signed-off-by: Soumya Managoli <quic_c_smanag@quicinc.com>
This commit is contained in:
Soumya Managoli 2023-05-16 12:01:48 +05:30
commit 2e8272c7f6
1 changed files with 4 additions and 1 deletions
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5
dsp/q6afe.c
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@ -1,6 +1,6 @@
// SPDX-License-Identifier: GPL-2.0-only
/* Copyright (c) 2012-2021, The Linux Foundation. All rights reserved.
* Copyright (c) 2022, Qualcomm Innovation Center, Inc. All rights reserved.
* Copyright (c) 2022-2023, Qualcomm Innovation Center, Inc. All rights reserved.
*/
#include <linux/slab.h>
#include <linux/debugfs.h>
@ -1249,6 +1249,9 @@ static int32_t afe_callback(struct apr_client_data *data, void *priv)
sizeof(struct afe_port_mod_evt_rsp_hdr));
uint32_t *dc_presence_flag = num_channels + 1;
if (*num_channels < 1 || *num_channels > 4)
return -EINVAL;
for (i = 0; i < *num_channels; i++) {
if (dc_presence_flag[i] == 1)
dc_detected = true;