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qcacmn: channel_switch_complete_evt need wake up all waiting threads

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2 threads blocked to wait channel_switch_complete_evt for SAP channel
switch is already in progress,  qdf_event_set only woke up 1st thread
later,  2nd  thread still kept blocked with hold  net_dev for debug id
NET_DEV_HOLD_COUNTRY_CHANGE_UPDATE_SAP, leak happened.

Change-Id: Ib76318dd4a613ca1852a56b7701a04385b69ba56
CRs-Fixed: 3061976
This commit is contained in:
Jianmin Zhu
2021-10-23 23:08:56 +08:00
committed by Madan Koyyalamudi
parent b981e05832
commit 7a0af0ae4e
2 changed files with 49 additions and 14 deletions
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30
qdf/inc/qdf_event.h
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@@ -1,5 +1,5 @@
/*
* Copyright (c) 2014-2018 The Linux Foundation. All rights reserved.
* Copyright (c) 2014-2018, 2021 The Linux Foundation. All rights reserved.
*
* Permission to use, copy, modify, and/or distribute this software for
* any purpose with or without fee is hereby granted, provided that the
@@ -41,8 +41,36 @@ typedef __qdf_event_t qdf_event_t;
QDF_STATUS qdf_event_create(qdf_event_t *event);
/**
* qdf_event_set() - sets a QDF event for single waiting threads
* @event: The event to set to the signalled state
*
* The state of the specified event is set to signalled by calling
* qdf_event_set().
*
* Single thread waiting on the event as a result of a qdf_event_wait() will
* be unblocked and available to be scheduled for execution when the event
* is signaled by a call to qdf_event_set().
*
* Return: QDF status
*/
QDF_STATUS qdf_event_set(qdf_event_t *event);
/**
* qdf_event_set_all() - sets a QDF event for all waiting threads
* @event: The event to set to the signalled state
*
* The state of the specified event is set to signalled by calling
* qdf_event_set_all().
*
* Any threads waiting on the event as a result of a qdf_event_wait() will
* be unblocked and available to be scheduled for execution when the event
* is signaled by a call to qdf_event_set().
*
* Return: QDF status
*/
QDF_STATUS qdf_event_set_all(qdf_event_t *event);
QDF_STATUS qdf_event_reset(qdf_event_t *event);
QDF_STATUS qdf_event_destroy(qdf_event_t *event);