staging: rtl8188eu: fix comparsions to NULL - style

Use x instead of x != NULL.
Use !x instead of x == NULL.
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8188eu/os_dep/os_intfs.c

@@ -311,7 +311,7 @@ struct net_device *rtw_init_netdev(struct adapter *old_padapter)
 
 	RT_TRACE(_module_os_intfs_c_, _drv_info_, ("+init_net_dev\n"));
 
-	if (old_padapter != NULL)
+	if (old_padapter)
 		pnetdev = rtw_alloc_etherdev_with_old_priv((void *)old_padapter);
 
 	if (!pnetdev)

drivers/staging/rtl8188eu/os_dep/usb_intf.c

@@ -325,7 +325,7 @@ static struct adapter *rtw_usb_if1_init(struct dvobj_priv *dvobj,
 	int status = _FAIL;
 
 	padapter = vzalloc(sizeof(*padapter));
-	if (padapter == NULL)
+	if (!padapter)
 		goto exit;
 	padapter->dvobj = dvobj;
 	dvobj->if1 = padapter;
@@ -334,14 +334,14 @@ static struct adapter *rtw_usb_if1_init(struct dvobj_priv *dvobj,
 	mutex_init(&padapter->hw_init_mutex);
 
 	pnetdev = rtw_init_netdev(padapter);
-	if (pnetdev == NULL)
+	if (!pnetdev)
 		goto free_adapter;
 	SET_NETDEV_DEV(pnetdev, dvobj_to_dev(dvobj));
 	padapter = rtw_netdev_priv(pnetdev);
 
 	if (padapter->registrypriv.monitor_enable) {
 		pmondev = rtl88eu_mon_init();
-		if (pmondev == NULL)
+		if (!pmondev)
 			netdev_warn(pnetdev, "Failed to initialize monitor interface");
 		padapter->pmondev = pmondev;
 	}

drivers/staging/rtl8188eu/os_dep/usb_ops_linux.c

@@ -58,7 +58,7 @@ static int recvbuf2recvframe(struct adapter *adapt, struct sk_buff *pskb)
 		prxstat = (struct recv_stat *)pbuf;
 
 		precvframe = rtw_alloc_recvframe(pfree_recv_queue);
-		if (precvframe == NULL) {
+		if (!precvframe) {
 			RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("recvbuf2recvframe: precvframe==NULL\n"));
 			DBG_88E("%s()-%d: rtw_alloc_recvframe() failed! RX Drop!\n", __func__, __LINE__);
 			goto _exit_recvbuf2recvframe;
@@ -436,16 +436,16 @@ u32 usb_read_port(struct adapter *adapter, u32 addr, struct recv_buf *precvbuf)
 		return _FAIL;
 	}
 
-	if ((!precvbuf->reuse) || (precvbuf->pskb == NULL)) {
+	if ((!precvbuf->reuse) || (!precvbuf->pskb)) {
 		precvbuf->pskb = skb_dequeue(&precvpriv->free_recv_skb_queue);
-		if (precvbuf->pskb != NULL)
+		if (precvbuf->pskb)
 			precvbuf->reuse = true;
 	}
 
 	/* re-assign for linux based on skb */
-	if ((!precvbuf->reuse) || (precvbuf->pskb == NULL)) {
+	if ((!precvbuf->reuse) || (!precvbuf->pskb)) {
 		precvbuf->pskb = netdev_alloc_skb(adapter->pnetdev, MAX_RECVBUF_SZ);
-		if (precvbuf->pskb == NULL) {
+		if (!precvbuf->pskb) {
 			RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("init_recvbuf(): alloc_skb fail!\n"));
 			DBG_88E("#### usb_read_port() alloc_skb fail!#####\n");
 			return _FAIL;

drivers/staging/rtl8188eu/os_dep/xmit_linux.c

@@ -19,7 +19,7 @@ int rtw_os_xmit_resource_alloc(struct adapter *padapter, struct xmit_buf *pxmitb
 	int i;
 
 	pxmitbuf->pallocated_buf = kzalloc(alloc_sz, GFP_KERNEL);
-	if (pxmitbuf->pallocated_buf == NULL)
+	if (!pxmitbuf->pallocated_buf)
 		return _FAIL;
 
 	pxmitbuf->pbuf = PTR_ALIGN(pxmitbuf->pallocated_buf, XMITBUF_ALIGN_SZ);