wlan:Fix the errors observed in static SME source code analysis.

Resolve the generic issues observed in static source code
analysis.

CRs-Fixed: 467286
Change-Id: I3c4d67b2b18c9cf870c2d340a3fcd1e6b0fa2fe1
diff --git a/CORE/SME/src/csr/csrNeighborRoam.c b/CORE/SME/src/csr/csrNeighborRoam.c
index d380e44..3a1b758 100644
--- a/CORE/SME/src/csr/csrNeighborRoam.c
+++ b/CORE/SME/src/csr/csrNeighborRoam.c
@@ -670,6 +670,8 @@
     tANI_U8 i = 0;
 
     VOS_ASSERT(pScanFilter != NULL);
+    if (pScanFilter == NULL)
+        return eHAL_STATUS_FAILURE;
     vos_mem_zero(pScanFilter, sizeof(tCsrScanResultFilter));
 
     pScanFilter->BSSIDs.numOfBSSIDs = pNeighborRoamInfo->FTRoamInfo.numBssFromNeighborReport;
@@ -1017,6 +1019,8 @@
     tANI_U8 i = 0;
     
     VOS_ASSERT(pScanFilter != NULL);
+    if (pScanFilter == NULL)
+        return eHAL_STATUS_FAILURE;
 
     vos_mem_zero(pScanFilter, sizeof(tCsrScanResultFilter));