usb/net/r815x: fix cast to restricted __le32

>> drivers/net/usb/r815x.c:38:16: sparse: cast to restricted __le32
>> drivers/net/usb/r815x.c:67:15: sparse: cast to restricted __le32
>> drivers/net/usb/r815x.c:69:13: sparse: incorrect type in assignment (different base types)
   drivers/net/usb/r815x.c:69:13:    expected unsigned int [unsigned] [addressable] [assigned] [usertype] tmp
   drivers/net/usb/r815x.c:69:13:    got restricted __le32 [usertype] <noident>

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Spotted-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/usb/r815x.c b/drivers/net/usb/r815x.c
index 6516737..8523922 100644 (file)
--- a/drivers/net/usb/r815x.c
+++ b/drivers/net/usb/r815x.c
@@ -26,16 +26,18 @@ static int pla_read_word(struct usb_device *udev, u16 index)
 {
        int data, ret;
        u8 shift = index & 2;
+       __le32 ocp_data;
 
        index &= ~3;
 
        ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
                              RTL815x_REQ_GET_REGS, RTL815x_REQT_READ,
-                             index, MCU_TYPE_PLA, &data, sizeof(data), 500);
+                             index, MCU_TYPE_PLA, &ocp_data, sizeof(ocp_data),
+                             500);
        if (ret < 0)
                return ret;
 
-       data = __le32_to_cpu(data);
+       data = __le32_to_cpu(ocp_data);
        data >>= (shift * 8);
        data &= 0xffff;
 
@@ -44,7 +46,8 @@ static int pla_read_word(struct usb_device *udev, u16 index)
 
 static int pla_write_word(struct usb_device *udev, u16 index, u32 data)
 {
-       u32 tmp, mask = 0xffff;
+       __le32 ocp_data;
+       u32 mask = 0xffff;
        u16 byen = BYTE_EN_WORD;
        u8 shift = index & 2;
        int ret;
@@ -60,18 +63,18 @@ static int pla_write_word(struct usb_device *udev, u16 index, u32 data)
 
        ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
                              RTL815x_REQ_GET_REGS, RTL815x_REQT_READ,
-                             index, MCU_TYPE_PLA, &tmp, sizeof(tmp), 500);
+                             index, MCU_TYPE_PLA, &ocp_data, sizeof(ocp_data),
+                             500);
        if (ret < 0)
                return ret;
 
-       tmp = __le32_to_cpu(tmp) & ~mask;
-       tmp |= data;
-       tmp = __cpu_to_le32(tmp);
+       data |= __le32_to_cpu(ocp_data) & ~mask;
+       ocp_data = __cpu_to_le32(data);
 
        ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
                              RTL815x_REQ_SET_REGS, RTL815x_REQT_WRITE,
-                             index, MCU_TYPE_PLA | byen, &tmp,
-                             sizeof(tmp), 500);
+                             index, MCU_TYPE_PLA | byen, &ocp_data,
+                             sizeof(ocp_data), 500);
 
        return ret;
 }