qcacld-3.0: Invalidate session ID after successful session close

Presently, host sets session ID to invalid(0xFF) once it posts the
message for sme to close session. During the close session if there
are any north bound command pending in queue, Host is sending the
command with invalid session ID to firmware, leading to device crash.

Set session ID to invalid only once sme session is closed.

Change-Id: Ib8a6a8e8a8af842064f6500b4bb62266eae7c1f8
CRs-Fixed: 1074111

core/hdd/src/wlan_hdd_hostapd.c

@@ -7674,6 +7674,7 @@ static int __wlan_hdd_cfg80211_stop_ap(struct wiphy *wiphy,
 		global_p2p_connection_status = P2P_NOT_ACTIVE;
 	}
 #endif
+	pAdapter->sessionId = HDD_SESSION_ID_INVALID;
 	EXIT();
 	return ret;
 }

core/hdd/src/wlan_hdd_main.c

@@ -3463,7 +3463,6 @@ static void hdd_wait_for_sme_close_sesion(hdd_context_t *hdd_ctx,
 			sme_close_session(hdd_ctx->hHal, adapter->sessionId,
 				hdd_sme_close_session_callback,
 				adapter)) {
-		adapter->sessionId = HDD_SESSION_ID_INVALID;
 		/*
 		 * Block on a completion variable. Can't wait
 		 * forever though.
@@ -3477,7 +3476,9 @@ static void hdd_wait_for_sme_close_sesion(hdd_context_t *hdd_ctx,
 			if (adapter->device_mode == QDF_NDI_MODE)
 				hdd_ndp_session_end_handler(adapter);
 			clear_bit(SME_SESSION_OPENED, &adapter->event_flags);
+			return;
 		}
+		adapter->sessionId = HDD_SESSION_ID_INVALID;
 	}
 }