From f98a5cc3f84f60f5c94fee55f973cc33896f6cb4 Mon Sep 17 00:00:00 2001
From: Rajeev Kumar <rajekuma@codeaurora.org>
Date: Fri, 28 Jul 2017 08:42:46 -0700
Subject: [PATCH] qcacld-3.0: Hold wake lock for SAP client disconnect
 notification

Hold wake lock in driver for SAP client disconnect notification to
user space inorder to avoid hostapd and driver going out of sync.

Change-Id: If81cf836b8fc047731735aa28831d1efa2f4e7b2
CRs-Fixed: 2084282
---
 core/hdd/inc/wlan_hdd_main.h    | 3 +++
 core/hdd/src/wlan_hdd_hostapd.c | 5 +++++
 2 files changed, 8 insertions(+)

diff --git a/core/hdd/inc/wlan_hdd_main.h b/core/hdd/inc/wlan_hdd_main.h
index 0e770d3311fd..c01dd8f3821e 100644
--- a/core/hdd/inc/wlan_hdd_main.h
+++ b/core/hdd/inc/wlan_hdd_main.h
@@ -262,6 +262,9 @@
 #define WLAN_HDD_QOS_MAP_CONFIGURE 4
 #define HDD_SAP_WAKE_LOCK_DURATION 10000        /* in msecs */
 
+/* SAP client disconnect wake lock duration in milli seconds */
+#define HDD_SAP_CLIENT_DISCONNECT_WAKE_LOCK_DURATION (1000)
+
 #if defined(CONFIG_HL_SUPPORT)
 #define HDD_MOD_EXIT_SSR_MAX_RETRIES 200
 #else
diff --git a/core/hdd/src/wlan_hdd_hostapd.c b/core/hdd/src/wlan_hdd_hostapd.c
index 227747eb3a8b..1da56f8123ea 100644
--- a/core/hdd/src/wlan_hdd_hostapd.c
+++ b/core/hdd/src/wlan_hdd_hostapd.c
@@ -1825,6 +1825,11 @@ QDF_STATUS hdd_hostapd_sap_event_cb(tpSap_Event pSapEvent,
 		wlan_hdd_auto_shutdown_enable(pHddCtx, true);
 #endif
 
+		cds_host_diag_log_work(&pHddCtx->sap_wake_lock,
+				       HDD_SAP_WAKE_LOCK_DURATION,
+				       WIFI_POWER_EVENT_WAKELOCK_SAP);
+		qdf_wake_lock_timeout_acquire(&pHddCtx->sap_wake_lock,
+			 HDD_SAP_CLIENT_DISCONNECT_WAKE_LOCK_DURATION);
 		cfg80211_del_sta(dev,
 				 (const u8 *)&pSapEvent->sapevt.
 				 sapStationDisassocCompleteEvent.staMac.