part_efi: Fix partition size calculation due to inclusive ending LBA.
The ending LBA is inclusive. Hence, the partition size should be
((ending-LBA + 1) - starting-LBA) to get the proper partition size.
This is confirmed against the results from the parted tool.
(e.g. use parted /dev/sda -s unit S print) and observe the size.
Signed-off-by: Richard Retanubun <RichardRetanubun@RuggedCom.com>
diff --git a/disk/part_efi.c b/disk/part_efi.c
index cc188ee..d8a8111 100644
--- a/disk/part_efi.c
+++ b/disk/part_efi.c
@@ -163,7 +163,9 @@
/* The ulong casting limits the maximum disk size to 2 TB */
info->start = (ulong) le64_to_int((*pgpt_pte)[part - 1].starting_lba);
- info->size = (ulong) le64_to_int((*pgpt_pte)[part - 1].ending_lba) - info->start;
+ /* The ending LBA is inclusive, to calculate size, add 1 to it */
+ info->size = ((ulong)le64_to_int((*pgpt_pte)[part - 1].ending_lba) + 1)
+ - info->start;
info->blksz = GPT_BLOCK_SIZE;
sprintf((char *)info->name, "%s%d\n", GPT_ENTRY_NAME, part);