commit 31271ed6b6cc17a2a5f863df1c0dcbe24edf6e67
author Abhishek Singh <absingh@qti.qualcomm.com> Thu Feb 04 18:05:32 2016 +0530
committer Gerrit - the friendly Code Review server <code-review@localhost> Tue Mar 01 22:09:47 2016 -0800
tree 6909ffb1522ea218bc9f967d0906dbdf602d92f1
parent 5adab912c3c3fd107710f07c52b0b47cb0b322b3

Wlan: Init the thread resume wait event before setting suspend event

While suspending threads suspend complete event is set before
resume wait event is initialized.

In case resume is followed by suspend there might arise a condition
where resume wait event is set even before its initialization.
Thus after initializing the wait event thread will keep on waiting
on the event and thus get stuck.

To avoid this initialize the thread resume wait event before
setting the suspend event.

Change-Id: Iaffacd23f363f386fbaef4de066784cfd4d9e139
CRs-Fixed: 972287

CORE/VOSS/src/vos_sched.c

diff --git a/CORE/VOSS/src/vos_sched.c b/CORE/VOSS/src/vos_sched.c
index a96dfd8..dcf316f 100644
--- a/CORE/VOSS/src/vos_sched.c
+++ b/CORE/VOSS/src/vos_sched.c
@@ -609,11 +609,9 @@
                              &pSchedContext->mcEventFlag))
       {
         spin_lock(&pSchedContext->McThreadLock);
-
+        INIT_COMPLETION(pSchedContext->ResumeMcEvent);
         /* Mc Thread Suspended */
         complete(&pHddCtx->mc_sus_event_var);
-
-        INIT_COMPLETION(pSchedContext->ResumeMcEvent);
         spin_unlock(&pSchedContext->McThreadLock);
 
         /* Wait foe Resume Indication */
@@ -1157,13 +1155,10 @@
                              &pSchedContext->txEventFlag))
       {
         spin_lock(&pSchedContext->TxThreadLock);
-
+        INIT_COMPLETION(pSchedContext->ResumeTxEvent);
         /* Tx Thread Suspended */
         complete(&pHddCtx->tx_sus_event_var);
-
-        INIT_COMPLETION(pSchedContext->ResumeTxEvent);
         spin_unlock(&pSchedContext->TxThreadLock);
-
         /* Wait foe Resume Indication */
         wait_for_completion_interruptible(&pSchedContext->ResumeTxEvent);
       }
@@ -1359,11 +1354,9 @@
                              &pSchedContext->rxEventFlag))
       {
         spin_lock(&pSchedContext->RxThreadLock);
-
+        INIT_COMPLETION(pSchedContext->ResumeRxEvent);
         /* Rx Thread Suspended */
         complete(&pHddCtx->rx_sus_event_var);
-
-        INIT_COMPLETION(pSchedContext->ResumeRxEvent);
         spin_unlock(&pSchedContext->RxThreadLock);
 
         /* Wait for Resume Indication */