[PATCH] cs89x0: use u16 for device register data

cs89x0 inconsistently used 'int' and 'u32' for device register data.
As the cs89x0 is a 16-bit chip, change the I/O accessors over to 'u16'.
(Spotted by Deepak Saxena.)

Signed-off-by: Lennert Buytenhek <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
Signed-off-by: Linus Torvalds <[e-mail]>

drivers/net/cs89x0.c

···
 #endif
 
 #if defined(CONFIG_ARCH_IXDP2X01)
-static int
+static u16
 readword(unsigned long base_addr, int portno)
 {
-	return (u16)__raw_readl(base_addr + (portno << 1));
+	return __raw_readl(base_addr + (portno << 1));
 }
 
 static void
-writeword(unsigned long base_addr, int portno, int value)
+writeword(unsigned long base_addr, int portno, u16 value)
 {
-	__raw_writel((u16)value, base_addr + (portno << 1));
+	__raw_writel(value, base_addr + (portno << 1));
 }
 #elif defined(CONFIG_ARCH_PNX010X)
-static int
+static u16
 readword(unsigned long base_addr, int portno)
 {
 	return inw(base_addr + (portno << 1));
 }
 
 static void
-writeword(unsigned long base_addr, int portno, int value)
+writeword(unsigned long base_addr, int portno, u16 value)
 {
 	outw(value, base_addr + (portno << 1));
 }
 #else
-static int
+static u16
 readword(unsigned long base_addr, int portno)
 {
 	return inw(base_addr + portno);
 }
 
 static void
-writeword(unsigned long base_addr, int portno, int value)
+writeword(unsigned long base_addr, int portno, u16 value)
 {
 	outw(value, base_addr + portno);
 }
···
 	u8 *buf8 = (u8 *)buf;
 
 	do {
-		u32 tmp32;
+		u16 tmp16;
 
-		tmp32 = readword(base_addr, portno);
-		*buf8++ = (u8)tmp32;
-		*buf8++ = (u8)(tmp32 >> 8);
+		tmp16 = readword(base_addr, portno);
+		*buf8++ = (u8)tmp16;
+		*buf8++ = (u8)(tmp16 >> 8);
 	} while (--length);
 }
 
···
 	u8 *buf8 = (u8 *)buf;
 
 	do {
-		u32 tmp32;
+		u16 tmp16;
 
-		tmp32 = *buf8++;
-		tmp32 |= (*buf8++) << 8;
-		writeword(base_addr, portno, tmp32);
+		tmp16 = *buf8++;
+		tmp16 |= (*buf8++) << 8;
+		writeword(base_addr, portno, tmp16);
 	} while (--length);
 }
 
-static int
-readreg(struct net_device *dev, int regno)
+static u16
+readreg(struct net_device *dev, u16 regno)
 {
 	writeword(dev->base_addr, ADD_PORT, regno);
 	return readword(dev->base_addr, DATA_PORT);
 }
 
 static void
-writereg(struct net_device *dev, int regno, int value)
+writereg(struct net_device *dev, u16 regno, u16 value)
 {
 	writeword(dev->base_addr, ADD_PORT, regno);
 	writeword(dev->base_addr, DATA_PORT, value);