Staging: btmtk_usb: Fix Sparse Warning of incorrect casting

This patch fixes the following Sparse Warnings in btmtk_usb.c:

drivers/staging/btmtk_usb/btmtk_usb.c:110:16: warning: cast to restricted __le32
drivers/staging/btmtk_usb/btmtk_usb.c:299:23: warning: cast to restricted __le16

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/btmtk_usb/btmtk_usb.c b/drivers/staging/btmtk_usb/btmtk_usb.c
index 1b0f993..cb315b5 100644 (file)
--- a/drivers/staging/btmtk_usb/btmtk_usb.c
+++ b/drivers/staging/btmtk_usb/btmtk_usb.c
@@ -93,6 +93,7 @@ static int btmtk_usb_io_read32(struct btmtk_usb_data *data, u32 reg, u32 *val)
        u8 request = data->r_request;
        struct usb_device *udev = data->udev;
        int ret;
+       __le32 val_le;
 
        ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), request,
                        DEVICE_VENDOR_REQUEST_IN, 0x0, reg, data->io_buf,
@@ -105,9 +106,9 @@ static int btmtk_usb_io_read32(struct btmtk_usb_data *data, u32 reg, u32 *val)
                return ret;
        }
 
-       memmove(val, data->io_buf, 4);
+       memmove(&val_le, data->io_buf, 4);
 
-       *val = le32_to_cpu(*val);
+       *val = le32_to_cpu(val_le);
 
        if (ret > 0)
                ret = 0;
@@ -280,6 +281,7 @@ static u16 btmtk_usb_get_crc(struct btmtk_usb_data *data)
        int ret = 0;
        struct usb_device *udev = data->udev;
        u16 crc, count = 0;
+       __le16 crc_le;
 
        BT_DBG("%s\n", __func__);
 
@@ -294,9 +296,9 @@ static u16 btmtk_usb_get_crc(struct btmtk_usb_data *data)
                        BT_ERR("%s error(%d)\n", __func__, ret);
                }
 
-               memmove(&crc, data->io_buf, 2);
+               memmove(&crc_le, data->io_buf, 2);
 
-               crc = le16_to_cpu(crc);
+               crc = le16_to_cpu(crc_le);
 
                if (crc != 0xFFFF)
                        break;