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authorTimothy Sham <tsham@codeaurora.org>2019-08-01 11:17:07 -0400
committerGerrit - the friendly Code Review server <code-review@localhost>2019-08-15 15:09:47 -0700
commit13891703ff242bf93d3112c1fb368fa1207ffe57 (patch)
treeb9ec26b1ba4cf2eb231413f4649895e7122a09ba
parent2a61e30d4462de293371173af5c153e0ea195f0e (diff)
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 <tsham@codeaurora.org>
-rw-r--r--sound/soc/msm/qdsp6v2/rtac.c5
1 files 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);
}