this changes if() BUG(); constructs to BUG_ON() which is
cleaner, contains unlikely() and can better optimized away.
Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
 
        device = (struct tape_device *) queue->queuedata;
        DBF_LH(6, "tapeblock_request_fn(device=%p)\n", device);
-       if (device == NULL)
-               BUG();
-
+       BUG_ON(device == NULL);
        tapeblock_trigger_requeue(device);
 }
 
        int                     rc;
 
        device = (struct tape_device *) disk->private_data;
-       if (!device)
-               BUG();
+       BUG_ON(!device);
 
        if (!device->blk_data.medium_changed)
                return 0;
 
        rc     = 0;
        disk   = inode->i_bdev->bd_disk;
-       if (!disk)
-               BUG();
+       BUG_ON(!disk);
        device = disk->private_data;
-       if (!device)
-               BUG();
+       BUG_ON(!device);
        minor  = iminor(inode);
 
        DBF_LH(6, "tapeblock_ioctl(0x%0x)\n", command);