commit e1b791fae9432af505c6016665e9faa22f596155
author Madan Mohan Koyyalamudi <mkoyyala@qca.qualcomm.com> Wed Jul 24 12:53:33 2013 +0530
committer Madan Mohan Koyyalamudi <mkoyyala@qca.qualcomm.com> Mon Aug 12 16:55:27 2013 -0700
tree 994df4bf6745ad62d184fd0112b4caced2121b5e
parent 6208028030202b02dd4ae1dff1d1b585e54b6a74

wlan: Check for adapter magic in soft ap callback

In case of DELSTA processing gets delayed, adapter is
freed after waiting for 10 seconds in another context,
so need to check for magic number to validate the context.

CRs-fixed: 517666
Change-Id: I90d118d58bf97ca85cfb7abbec00f7f576ad347b

CORE/HDD/src/wlan_hdd_hostapd.c

diff --git a/CORE/HDD/src/wlan_hdd_hostapd.c b/CORE/HDD/src/wlan_hdd_hostapd.c
index d95a005..497f0bc 100644
--- a/CORE/HDD/src/wlan_hdd_hostapd.c
+++ b/CORE/HDD/src/wlan_hdd_hostapd.c
@@ -460,6 +460,15 @@
 
     dev = (struct net_device *)usrDataForCallback;
     pHostapdAdapter = netdev_priv(dev);
+
+    if ((NULL == pHostapdAdapter) ||
+        (WLAN_HDD_ADAPTER_MAGIC != pHostapdAdapter->magic))
+    {
+        VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_FATAL,
+                "invalid adapter or adapter has invalid magic");
+        return eHAL_STATUS_FAILURE;
+    }
+
     pHostapdState = WLAN_HDD_GET_HOSTAP_STATE_PTR(pHostapdAdapter); 
     pHddApCtx = WLAN_HDD_GET_AP_CTX_PTR(pHostapdAdapter);
     sapEvent = pSapEvent->sapHddEventCode;