staging: rtl8723au: Clean up error codes in IO functions

This also fixes up another messy case assuming _FAIL == false and
true == _SUCCESS
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8723au/core/rtw_io.c

@@ -139,7 +139,7 @@ void _rtw_write_mem23a(struct rtw_adapter *adapter, u32 addr, u32 cnt, u8 *pmem)
 	io_ops->_write_mem(adapter, addr, cnt, pmem);
 }
 
-void _rtw_read_port23a(struct rtw_adapter *adapter, u32 addr, u32 cnt,
+int _rtw_read_port23a(struct rtw_adapter *adapter, u32 addr, u32 cnt,
 		       struct recv_buf *rbuf)
 {
 	struct _io_ops *io_ops = &adapter->io_ops;
@@ -150,10 +150,10 @@ void _rtw_read_port23a(struct rtw_adapter *adapter, u32 addr, u32 cnt,
 		      ("rtw_read_port:bDriverStopped(%d) OR "
 		       "bSurpriseRemoved(%d)", adapter->bDriverStopped,
 		       adapter->bSurpriseRemoved));
-	     return;
+	     return _FAIL;
 	}
 
-	io_ops->_read_port(adapter, addr, cnt, rbuf);
+	return io_ops->_read_port(adapter, addr, cnt, rbuf);
 }
 
 void _rtw_read_port23a_cancel(struct rtw_adapter *adapter)
@@ -167,11 +167,11 @@ void _rtw_read_port23a_cancel(struct rtw_adapter *adapter)
 		_read_port_cancel(adapter);
 }
 
-u32 _rtw_write_port23a(struct rtw_adapter *adapter, u32 addr, u32 cnt,
+int _rtw_write_port23a(struct rtw_adapter *adapter, u32 addr, u32 cnt,
 		    struct xmit_buf *xbuf)
 {
 	struct _io_ops *io_ops = &adapter->io_ops;
-	u32 ret = _SUCCESS;
+	int ret = _SUCCESS;
 
 	ret = io_ops->_write_port(adapter, addr, cnt, xbuf);
 

drivers/staging/rtl8723au/hal/usb_halinit.c

@@ -1228,9 +1228,9 @@ int rtl8723au_inirp_init(struct rtw_adapter *Adapter)
 	int status;
 	struct _io_ops *io_ops = &Adapter->io_ops;
 	struct recv_priv *precvpriv = &Adapter->recvpriv;
-	u32 (*_read_port)(struct rtw_adapter *padapter, u32 addr, u32 cnt,
+	int (*_read_port)(struct rtw_adapter *padapter, u32 addr, u32 cnt,
 			  struct recv_buf *rbuf);
-	u32 (*_read_interrupt)(struct rtw_adapter *padapter, u32 addr);
+	int (*_read_interrupt)(struct rtw_adapter *padapter, u32 addr);
 	struct hal_data_8723a *pHalData = GET_HAL_DATA(Adapter);
 
 	_read_port = io_ops->_read_port;
@@ -1245,7 +1245,7 @@ int rtl8723au_inirp_init(struct rtw_adapter *Adapter)
 	precvbuf = (struct recv_buf *)precvpriv->precv_buf;
 	for (i = 0; i < NR_RECVBUFF; i++) {
 		if (_read_port(Adapter, precvpriv->ff_hwaddr, 0, precvbuf) ==
-		    false) {
+		    _FAIL) {
 			RT_TRACE(_module_hci_hal_init_c_, _drv_err_,
 				 ("usb_rx_init: usb_read_port error\n"));
 			status = _FAIL;
@@ -1254,7 +1254,7 @@ int rtl8723au_inirp_init(struct rtw_adapter *Adapter)
 		precvbuf++;
 	}
 	_read_interrupt = io_ops->_read_interrupt;
-	if (_read_interrupt(Adapter, RECV_INT_IN_ADDR) == false) {
+	if (_read_interrupt(Adapter, RECV_INT_IN_ADDR) == _FAIL) {
 		RT_TRACE(_module_hci_hal_init_c_, _drv_err_,
 			 ("usb_rx_init: usb_read_interrupt error\n"));
 		status = _FAIL;

drivers/staging/rtl8723au/hal/usb_ops_linux.c

@@ -439,11 +439,11 @@ static void usb_read_interrupt_complete(struct urb *purb, struct pt_regs *regs)
 	}
 }
 
-static u32 usb_read_interrupt(struct rtw_adapter *adapter, u32 addr)
+static int usb_read_interrupt(struct rtw_adapter *adapter, u32 addr)
 {
 	int err;
 	unsigned int pipe;
-	u32 ret = _SUCCESS;
+	int ret = _SUCCESS;
 	struct dvobj_priv *pdvobj = adapter_to_dvobj(adapter);
 	struct recv_priv *precvpriv = &adapter->recvpriv;
 	struct usb_device *pusbd = pdvobj->pusbdev;
@@ -733,14 +733,14 @@ static void usb_read_port_complete(struct urb *purb, struct pt_regs *regs)
 	}
 }
 
-static u32 usb_read_port(struct rtw_adapter *adapter, u32 addr, u32 cnt,
+static int usb_read_port(struct rtw_adapter *adapter, u32 addr, u32 cnt,
 			 struct recv_buf *precvbuf)
 {
 	int err;
 	unsigned int pipe;
 	unsigned long tmpaddr = 0;
 	unsigned long alignment = 0;
-	u32 ret = _SUCCESS;
+	int ret = _SUCCESS;
 	struct urb *purb = NULL;
 	struct dvobj_priv	*pdvobj = adapter_to_dvobj(adapter);
 	struct recv_priv	*precvpriv = &adapter->recvpriv;

drivers/staging/rtl8723au/include/rtw_io.h

@@ -107,15 +107,20 @@ struct _io_ops
 	int (*_write8)(struct rtw_adapter *adapter, u32 addr, u8 val);
 	int (*_write16)(struct rtw_adapter *adapter, u32 addr, u16 val);
 	int (*_write32)(struct rtw_adapter *adapter, u32 addr, u32 val);
-	int (*_writeN)(struct rtw_adapter *adapter, u32 addr, u32 length, u8 *pdata);
+	int (*_writeN)(struct rtw_adapter *adapter, u32 addr, u32 length,
+		       u8 *pdata);
 
-	void (*_read_mem)(struct rtw_adapter *adapter, u32 addr, u32 cnt, u8 *pmem);
-	void (*_write_mem)(struct rtw_adapter *adapter, u32 addr, u32 cnt, u8 *pmem);
+	void (*_read_mem)(struct rtw_adapter *adapter, u32 addr, u32 cnt,
+			  u8 *pmem);
+	void (*_write_mem)(struct rtw_adapter *adapter, u32 addr, u32 cnt,
+			   u8 *pmem);
 
-	u32 (*_read_interrupt)(struct rtw_adapter *adapter, u32 addr);
+	int (*_read_interrupt)(struct rtw_adapter *adapter, u32 addr);
 
-	u32 (*_read_port)(struct rtw_adapter *adapter, u32 addr, u32 cnt, struct recv_buf *rbuf);
-	u32 (*_write_port)(struct rtw_adapter *adapter, u32 addr, u32 cnt, struct xmit_buf *pmem);
+	int (*_read_port)(struct rtw_adapter *adapter, u32 addr, u32 cnt,
+			  struct recv_buf *rbuf);
+	int (*_write_port)(struct rtw_adapter *adapter, u32 addr, u32 cnt,
+			   struct xmit_buf *pmem);
 
 	void (*_read_port_cancel)(struct rtw_adapter *adapter);
 	void (*_write_port_cancel)(struct rtw_adapter *adapter);
@@ -254,7 +259,7 @@ u8 _rtw_read823a(struct rtw_adapter *adapter, u32 addr);
 u16 _rtw_read1623a(struct rtw_adapter *adapter, u32 addr);
 u32 _rtw_read3223a(struct rtw_adapter *adapter, u32 addr);
 void _rtw_read_mem23a(struct rtw_adapter *adapter, u32 addr, u32 cnt, u8 *pmem);
-void _rtw_read_port23a(struct rtw_adapter *adapter, u32 addr, u32 cnt, struct recv_buf *rbuf);
+int _rtw_read_port23a(struct rtw_adapter *adapter, u32 addr, u32 cnt, struct recv_buf *rbuf);
 void _rtw_read_port23a_cancel(struct rtw_adapter *adapter);
 
 int _rtw_write823a(struct rtw_adapter *adapter, u32 addr, u8 val);
@@ -263,7 +268,7 @@ int _rtw_write3223a(struct rtw_adapter *adapter, u32 addr, u32 val);
 int _rtw_writeN23a(struct rtw_adapter *adapter, u32 addr, u32 length, u8 *pdata);
 
 void _rtw_write_mem23a(struct rtw_adapter *adapter, u32 addr, u32 cnt, u8 *pmem);
-u32 _rtw_write_port23a(struct rtw_adapter *adapter, u32 addr, u32 cnt, struct xmit_buf *pmem);
+int _rtw_write_port23a(struct rtw_adapter *adapter, u32 addr, u32 cnt, struct xmit_buf *pmem);
 void _rtw_write_port23a_cancel(struct rtw_adapter *adapter);
 
 #ifdef DBG_IO

drivers/staging/rtl8723au/include/usb_ops_linux.h

@@ -39,7 +39,7 @@ void usb_write_mem23a(struct rtw_adapter *adapter, u32 addr, u32 cnt, u8 *wmem);
 
 void usb_read_port_cancel23a(struct rtw_adapter *adapter);
 
-u32 usb_write_port23a(struct rtw_adapter *adapter, u32 addr, u32 cnt,
+int usb_write_port23a(struct rtw_adapter *adapter, u32 addr, u32 cnt,
 		      struct xmit_buf *wmem);
 void usb_write_port23a_cancel(struct rtw_adapter *adapter);
 

drivers/staging/rtl8723au/os_dep/usb_ops_linux.c

@@ -160,7 +160,7 @@ static void usb_write_port23a_complete(struct urb *purb, struct pt_regs *regs)
 	tasklet_hi_schedule(&pxmitpriv->xmit_tasklet);
 }
 
-u32 usb_write_port23a(struct rtw_adapter *padapter, u32 addr, u32 cnt,
+int usb_write_port23a(struct rtw_adapter *padapter, u32 addr, u32 cnt,
 		      struct xmit_buf *pxmitbuf)
 {
 	struct urb *purb = NULL;
@@ -171,7 +171,7 @@ u32 usb_write_port23a(struct rtw_adapter *padapter, u32 addr, u32 cnt,
 	unsigned long irqL;
 	unsigned int pipe;
 	int status;
-	u32 ret = _FAIL;
+	int ret = _FAIL;
 
 	RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("+usb_write_port23a\n"));