commit d55424ae6e55ae85f21e5cde209a76a5fdc99b84
author Wu Gao <wugao@codeaurora.org> Wed Sep 14 14:46:37 2016 +0800
committer Anjaneedevi Kapparapu <akappa@codeaurora.org> Thu Sep 15 13:19:59 2016 +0530
tree 725fa82264550b4d5b461f2ba62b9e3e99ad6da7
parent 9bb0d4c1b406619fc6635a71ea104456daf659a6

qcacld-2.0: Process channel change request only when SAP is started

When SAP starts (DFS channel) on default interface and a new interface
for SAP is created, if eSAP_DFS_CHANNEL_CAC_RADAR_FOUND event is
triggered then kernel panic happens. This is because for the new
interface SAP is created but not started and due to this channel list
is NULL. Fix is to add state check for SAP interface to know if SAP is
started or not.

Change-Id: If613ec3ed0afad8a66d545bcd858fe73640a0273
CRs-Fixed: 1062516

CORE/SAP/src/sapFsm.c

diff --git a/CORE/SAP/src/sapFsm.c b/CORE/SAP/src/sapFsm.c
index b035c65..1b979c5 100644
--- a/CORE/SAP/src/sapFsm.c
+++ b/CORE/SAP/src/sapFsm.c
@@ -4143,13 +4143,14 @@
                 for (intf = 0; intf < SAP_MAX_NUM_SESSION; intf++)
                 {
                      ptSapContext sapContext;
+                     sapContext = pMac->sap.sapCtxList [intf].pSapContext;
                      if (((VOS_STA_SAP_MODE ==
                            pMac->sap.sapCtxList[intf].sapPersona) ||
                           (VOS_P2P_GO_MODE ==
                            pMac->sap.sapCtxList[intf].sapPersona)) &&
-                           pMac->sap.sapCtxList [intf].pSapContext != NULL)
+                           sapContext != NULL &&
+                           sapContext->sapsMachine != eSAP_DISCONNECTED)
                      {
-                         sapContext = pMac->sap.sapCtxList [intf].pSapContext;
                          /* SAP to be moved to DISCONNECTING state */
                          sapContext->sapsMachine = eSAP_DISCONNECTING;
                          /*