drivers/block/floppy.c: remove unnecessary casting in fd_ioctl

Convert outparam to const void *.
Cast outparam to const char * for strlen().

Signed-off-by: Joe Perches <joe@perches.com>
Cc: Stephen Hemminger <shemminger@vyatta.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Marcin Slusarz <marcin.slusarz@gmail.com>
Cc: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/block/floppy.c

@@ -3431,7 +3431,7 @@ static int fd_ioctl(struct block_device *bdev, fmode_t mode, unsigned int cmd,
 		struct floppy_max_errors max_errors;
 		struct floppy_drive_params dp;
 	} inparam;		/* parameters coming from user space */
-	const char *outparam;	/* parameters passed back to user space */
+	const void *outparam;	/* parameters passed back to user space */
 
 	/* convert compatibility eject ioctls into floppy eject ioctl.
 	 * We do this in order to provide a means to eject floppy disks before
@@ -3495,8 +3495,7 @@ static int fd_ioctl(struct block_device *bdev, fmode_t mode, unsigned int cmd,
 		return set_geometry(cmd, &inparam.g, drive, type, bdev);
 	case FDGETPRM:
 		ret = get_floppy_geometry(drive, type,
-					  (struct floppy_struct **)
-					  &outparam);
+					  (struct floppy_struct **)&outparam);
 		if (ret)
 			return ret;
 		break;
@@ -3531,20 +3530,20 @@ static int fd_ioctl(struct block_device *bdev, fmode_t mode, unsigned int cmd,
 		UDP->max_errors.reporting = (unsigned short)(param & 0x0f);
 		return 0;
 	case FDGETMAXERRS:
-		outparam = (const char *)&UDP->max_errors;
+		outparam = &UDP->max_errors;
 		break;
 	case FDSETMAXERRS:
 		UDP->max_errors = inparam.max_errors;
 		break;
 	case FDGETDRVTYP:
 		outparam = drive_name(type, drive);
-		SUPBOUND(size, strlen(outparam) + 1);
+		SUPBOUND(size, strlen((const char *)outparam) + 1);
 		break;
 	case FDSETDRVPRM:
 		*UDP = inparam.dp;
 		break;
 	case FDGETDRVPRM:
-		outparam = (const char *)UDP;
+		outparam = UDP;
 		break;
 	case FDPOLLDRVSTAT:
 		if (lock_fdc(drive, true))
@@ -3554,18 +3553,18 @@ static int fd_ioctl(struct block_device *bdev, fmode_t mode, unsigned int cmd,
 		process_fd_request();
 		/* fall through */
 	case FDGETDRVSTAT:
-		outparam = (const char *)UDRS;
+		outparam = UDRS;
 		break;
 	case FDRESET:
 		return user_reset_fdc(drive, (int)param, true);
 	case FDGETFDCSTAT:
-		outparam = (const char *)UFDCS;
+		outparam = UFDCS;
 		break;
 	case FDWERRORCLR:
 		memset(UDRWE, 0, sizeof(*UDRWE));
 		return 0;
 	case FDWERRORGET:
-		outparam = (const char *)UDRWE;
+		outparam = UDRWE;
 		break;
 	case FDRAWCMD:
 		if (type)