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path: root/drivers/s390/block/dcssblk.c
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Diffstat (limited to 'drivers/s390/block/dcssblk.c')
-rw-r--r--drivers/s390/block/dcssblk.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/s390/block/dcssblk.c b/drivers/s390/block/dcssblk.c
index 94a8f4ab57bc..ae1dc37e4068 100644
--- a/drivers/s390/block/dcssblk.c
+++ b/drivers/s390/block/dcssblk.c
@@ -892,7 +892,7 @@ dcssblk_direct_access (struct block_device *bdev, sector_t secnum,
dev_info = bdev->bd_disk->private_data;
if (!dev_info)
return -ENODEV;
- dev_sz = dev_info->end - dev_info->start;
+ dev_sz = dev_info->end - dev_info->start + 1;
offset = secnum * 512;
addr = (void *) (dev_info->start + offset);
*pfn = virt_to_phys(addr) >> PAGE_SHIFT;