[PATCH] daxctl: Fix memblock enumeration off-by-one

[Dan Williams]

A memblock is an inclusive memory range. Bound the search by the last
address in the memory block.

Found by wondering why an offline 32-block (at 128MB == 4GB) range was
reported as 33 blocks with one online.

Signed-off-by: Dan Williams <dan.j.willi...@intel.com>
---
 daxctl/lib/libdaxctl.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/daxctl/lib/libdaxctl.c b/daxctl/lib/libdaxctl.c
index 5703992f5b88..d990479d8585 100644
--- a/daxctl/lib/libdaxctl.c
+++ b/daxctl/lib/libdaxctl.c
@@ -1477,7 +1477,7 @@ static int memblock_in_dev(struct daxctl_memory *mem, 
const char *memblock)
                err(ctx, "%s: Unable to determine resource\n", devname);
                return -EACCES;
        }
-       dev_end = dev_start + daxctl_dev_get_size(dev);
+       dev_end = dev_start + daxctl_dev_get_size(dev) - 1;
 
        memblock_size = daxctl_memory_get_block_size(mem);
        if (!memblock_size) {