wlan: Fix issues found in static analysis in PE/SME

Fix issues found in static analysis in PE/SME

Change-Id: I919bd897df3fb1b43b4eca3d284cf14b70795ccc
CRs-Fixed: 687956
diff --git a/CORE/MAC/src/pe/lim/limSecurityUtils.c b/CORE/MAC/src/pe/lim/limSecurityUtils.c
index cdbfa2f..4b7858b 100644
--- a/CORE/MAC/src/pe/lim/limSecurityUtils.c
+++ b/CORE/MAC/src/pe/lim/limSecurityUtils.c
@@ -1064,6 +1064,7 @@
           {
              limLog( pMac, LOGE, FL("WEPIdx length %d more than "
                                     "the Max limit, reset to Max"),defWEPIdx);
+             vos_mem_free (pSetStaKeyParams);
              return;
           }
           vos_mem_copy((tANI_U8 *) &pSetStaKeyParams->key[defWEPIdx],