btrfs: tree-checker: check item_size for dev_item
Check item size before accessing the device item to avoid out of bound access, similar to inode_item check. Signed-off-by:Su Yue <l@damenly.su> Reviewed-by:
David Sterba <dsterba@suse.com> Signed-off-by:
David Sterba <dsterba@suse.com>
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