staging: comedi: dt9812: Resolves sparse endian warnings.

Resolves warnings from the "sparse" checker of the form "warning: cast to
restricted __le??".
Signed-off-by: NShaun Laing <shaun@xresource.ca>
Reviewed-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/comedi/drivers/dt9812.c

@@ -707,8 +707,9 @@ static int dt9812_reset_device(struct comedi_device *dev)
 	u32 serial;
 	u16 vendor;
 	u16 product;
-	u16 tmp16;
 	u8 tmp8;
+	__le16 tmp16;
+	__le32 tmp32;
 	int ret;
 	int i;
 
@@ -731,19 +732,19 @@ static int dt9812_reset_device(struct comedi_device *dev)
 		}
 	}
 
-	ret = dt9812_read_info(dev, 1, &vendor, sizeof(vendor));
+	ret = dt9812_read_info(dev, 1, &tmp16, sizeof(tmp16));
 	if (ret) {
 		dev_err(dev->class_dev, "failed to read vendor id\n");
 		return ret;
 	}
-	vendor = le16_to_cpu(vendor);
+	vendor = le16_to_cpu(tmp16);
 
-	ret = dt9812_read_info(dev, 3, &product, sizeof(product));
+	ret = dt9812_read_info(dev, 3, &tmp16, sizeof(tmp16));
 	if (ret) {
 		dev_err(dev->class_dev, "failed to read product id\n");
 		return ret;
 	}
-	product = le16_to_cpu(product);
+	product = le16_to_cpu(tmp16);
 
 	ret = dt9812_read_info(dev, 5, &tmp16, sizeof(tmp16));
 	if (ret) {
@@ -752,12 +753,12 @@ static int dt9812_reset_device(struct comedi_device *dev)
 	}
 	devpriv->device = le16_to_cpu(tmp16);
 
-	ret = dt9812_read_info(dev, 7, &serial, sizeof(serial));
+	ret = dt9812_read_info(dev, 7, &tmp32, sizeof(tmp32));
 	if (ret) {
 		dev_err(dev->class_dev, "failed to read serial number\n");
 		return ret;
 	}
-	serial = le32_to_cpu(serial);
+	serial = le32_to_cpu(tmp32);
 
 	/* let the user know what node this device is now attached to */
 	dev_info(dev->class_dev, "USB DT9812 (%4.4x.%4.4x.%4.4x) #0x%8.8x\n",