qcacld-3.0: Avoid waiting if driver is not in connecting stage

qcacld-2.0 to qcacld-3.0 propagation

If disconnect is already in progress because of deauth received
from AP when disconnect is also received from supplicant, there
is a possibility that completion variable disconnect_comp_var
gets reset in hdd_DisConnectHandler because of disconnection
in progress from AP before completion variable disconnect_comp_var
gets initialized in wlan_hdd_disconnect to handle disconnect from
supplicant. This can cause a delay of 5 seconds eventhough disconnect
was already happened. This waiting is not required when previous
connection status was not eConnectionState_Connecting. Fix this delay
by adding a check to avoid waiting when previous connection status was
not eConnectionState_Connecting.

Change-Id: I58ac638622c5164fa1e9fe45c52ebf60fab2340f
CRs-Fixed: 1093562

core/hdd/src/wlan_hdd_cfg80211.c

@@ -14115,6 +14115,7 @@ static int wlan_hdd_disconnect(hdd_adapter_t *pAdapter, u16 reason)
 	unsigned long rc;
 	hdd_station_ctx_t *pHddStaCtx = WLAN_HDD_GET_STATION_CTX_PTR(pAdapter);
 	hdd_context_t *pHddCtx = WLAN_HDD_GET_CTX(pAdapter);
+	eConnectionState prev_conn_state;
 
 	ENTER();
 
@@ -14123,6 +14124,8 @@ static int wlan_hdd_disconnect(hdd_adapter_t *pAdapter, u16 reason)
 	if (0 != status)
 		return status;
 
+	prev_conn_state = pHddStaCtx->conn_info.connState;
+
 	/*stop tx queues */
 	hdd_notice("Disabling queues");
 	wlan_hdd_netif_queue_control(pAdapter, WLAN_NETIF_TX_DISABLE_N_CARRIER,
@@ -14135,13 +14138,18 @@ static int wlan_hdd_disconnect(hdd_adapter_t *pAdapter, u16 reason)
 
 	status = sme_roam_disconnect(WLAN_HDD_GET_HAL_CTX(pAdapter),
 				     pAdapter->sessionId, reason);
-	/*
-	 * Wait here instead of returning directly, this will block the next
-	 * connect command and allow processing of the scan for ssid and
-	 * the previous connect command in CSR. Else we might hit some
-	 * race conditions leading to SME and HDD out of sync.
-	 */
-	if (QDF_STATUS_CMD_NOT_QUEUED == status) {
+	if ((QDF_STATUS_CMD_NOT_QUEUED == status) &&
+			prev_conn_state != eConnectionState_Connecting) {
+		hdd_notice("status = %d, already disconnected", status);
+		result = 0;
+		goto disconnected;
+	} else if (QDF_STATUS_CMD_NOT_QUEUED == status) {
+		/*
+		 * Wait here instead of returning directly, this will block the
+		 * next connect command and allow processing of the scan for
+		 * ssid and the previous connect command in CSR. Else we might
+		 * hit some race conditions leading to SME and HDD out of sync.
+		 */
 		hdd_info("Already disconnected or connect was in sme/roam pending list and removed by disconnect");
 	} else if (0 != status) {
 		hdd_err("csr_roam_disconnect failure, returned %d",