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s390/dcssblk: fix device size calculation in dcssblk_direct_access()

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am: b848102542

Change-Id: I2679898d49b6ebb1295baac47fe024d1148f445e
This commit is contained in:
Gerald Schaefer
2017-03-15 02:19:42 +00:00
committed by android-build-merger
parent b74ce883de b848102542
commit 0889880eac
1 changed files with 1 additions and 1 deletions
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2
drivers/s390/block/dcssblk.c
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@@ -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;
*kaddr = (void *) dev_info->start + offset;
*pfn = __pfn_to_pfn_t(PFN_DOWN(dev_info->start + offset), PFN_DEV);