[PATCH] s390: minor tape fixes

Cleanup of minor bugs found by a source code checker.

Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/drivers/s390/char/tape_block.c b/drivers/s390/char/tape_block.c
index 5c65cf3..b70d926 100644
--- a/drivers/s390/char/tape_block.c
+++ b/drivers/s390/char/tape_block.c
@@ -432,8 +432,8 @@
 ) {
 	int rc;
 	int minor;
-	struct gendisk *disk = inode->i_bdev->bd_disk;
-	struct tape_device *device = disk->private_data;
+	struct gendisk *disk;
+	struct tape_device *device;
 
 	rc     = 0;
 	disk   = inode->i_bdev->bd_disk;