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asoc: codecs: add a null pointer check in mbhc driver

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Add a missing function pointer null check condition in
mbhc driver to avoid null access during fast
insertion-removal.

Change-Id: I6aa64325cea6f7aa551115969d1e6ba184ec8d14
Signed-off-by: Ramprasad Katkam <katkam@codeaurora.org>
This commit is contained in:
Ramprasad Katkam 2018-01-25 14:57:20 +05:30 committed by Gerrit - the friendly Code Review server
parent da56c67bc4
commit 76c5b45e7f
1 changed files with 5 additions and 3 deletions
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8
asoc/codecs/wcd-mbhc-legacy.c
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@ -1,4 +1,4 @@
/* Copyright (c) 2015-2017, The Linux Foundation. All rights reserved.
/* Copyright (c) 2015-2018, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
@ -533,7 +533,8 @@ correct_plug_type:
mbhc->hs_detect_work_stop);
wcd_enable_curr_micbias(mbhc,
WCD_MBHC_EN_NONE);
if (mbhc->micbias_enable) {
if (mbhc->mbhc_cb->mbhc_micb_ctrl_thr_mic &&
mbhc->micbias_enable) {
mbhc->mbhc_cb->mbhc_micb_ctrl_thr_mic(
mbhc->codec, MIC_BIAS_2, false);
if (mbhc->mbhc_cb->set_micbias_value)
@ -558,7 +559,8 @@ correct_plug_type:
mbhc->hs_detect_work_stop);
wcd_enable_curr_micbias(mbhc,
WCD_MBHC_EN_NONE);
if (mbhc->micbias_enable) {
if (mbhc->mbhc_cb->mbhc_micb_ctrl_thr_mic &&
mbhc->micbias_enable) {
mbhc->mbhc_cb->mbhc_micb_ctrl_thr_mic(
mbhc->codec, MIC_BIAS_2, false);
if (mbhc->mbhc_cb->set_micbias_value)