From 13891703ff242bf93d3112c1fb368fa1207ffe57 Mon Sep 17 00:00:00 2001 From: Timothy Sham Date: Thu, 1 Aug 2019 11:17:07 -0400 Subject: [PATCH] rtac: add NULL pointer check for asm handle Add NULL pointer check for asm handle before assignment. Change-Id: Ic371c8486d153a6a95cd4e23d65ea0be0a9e70e8 Signed-off-by: Timothy Sham --- sound/soc/msm/qdsp6v2/rtac.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/sound/soc/msm/qdsp6v2/rtac.c b/sound/soc/msm/qdsp6v2/rtac.c index 0a331716bab9..5572a3dfadc1 100644 --- a/sound/soc/msm/qdsp6v2/rtac.c +++ b/sound/soc/msm/qdsp6v2/rtac.c @@ -1,4 +1,4 @@ -/* Copyright (c) 2012-2018, The Linux Foundation. All rights reserved. +/* Copyright (c) 2012-2019, 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 @@ -962,7 +962,8 @@ void rtac_set_asm_handle(u32 session_id, void *handle) pr_debug("%s\n", __func__); mutex_lock(&rtac_asm_apr_mutex); - rtac_asm_apr_data[session_id].apr_handle = handle; + if (rtac_asm_apr_data[session_id].apr_handle) + rtac_asm_apr_data[session_id].apr_handle = handle; mutex_unlock(&rtac_asm_apr_mutex); }