Further style improvements. Tested: Read still works

fatfs/diskio.c

@@ -28,12 +28,10 @@ DSTATUS disk_status (
 	BYTE pdrv		/* Physical drive nmuber to identify the drive */
 )
 {
-	DSTATUS stat;
-	int result;
 
 	switch (pdrv) {
 	case DEV_SD:
-        return sdio_status();
+		return sdio_status();
 	}
 	return STA_NOINIT;
 }
@@ -48,12 +46,9 @@ DSTATUS disk_initialize (
 	BYTE pdrv				/* Physical drive nmuber to identify the drive */
 )
 {
-	DSTATUS stat;
-	int result;
-
 	switch (pdrv) {
 	case DEV_SD:
-        return sdio_initialize();
+		return sdio_initialize();
 	}
 	return STA_NOINIT;
 }
@@ -71,12 +66,9 @@ DRESULT disk_read (
 	UINT count		/* Number of sectors to read */
 )
 {
-	DRESULT res;
-	int result;
-
 	switch (pdrv) {
 	case DEV_SD:
-        return sdio_disk_read(buff, sector, count);
+		return sdio_disk_read(buff, sector, count);
 	}
 	return RES_PARERR;
 }
@@ -96,12 +88,9 @@ DRESULT disk_write (
 	UINT count			/* Number of sectors to write */
 )
 {
-	DRESULT res;
-	int result;
-
 	switch (pdrv) {
 	case DEV_SD:
-		return SDIO_disk_write(buff, sector, count);
+		return sdio_disk_write(buff, sector, count);
 	}
 
 	return RES_PARERR;
@@ -120,12 +109,9 @@ DRESULT disk_ioctl (
 	void *buff		/* Buffer to send/receive control data */
 )
 {
-	DRESULT res;
-	int result;
-
 	switch (pdrv) {
 	case DEV_SD:
-        return sdio_disk_ioctl(cmd, buff);
+		return sdio_disk_ioctl(cmd, buff);
 	}
 
 	return RES_PARERR;