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authorRichard Retanubun <RichardRetanubun@RuggedCom.com>2009-01-26 08:45:14 -0500
committerWolfgang Denk <wd@denx.de>2009-01-27 23:03:57 +0100
commit50970839712dda35399e2fa83fe818df9354d618 (patch)
treefb9b8410b277709ba769d743467596704e5f675a /disk
parentb5b004ad8a0ac6f98bd5708ec8b22fbddd1c1042 (diff)
downloadu-boot-linaro-stable-50970839712dda35399e2fa83fe818df9354d618.tar.gz
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>
Diffstat (limited to 'disk')
-rw-r--r--disk/part_efi.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/disk/part_efi.c b/disk/part_efi.c
index cc188ee89..d8a81115c 100644
--- a/disk/part_efi.c
+++ b/disk/part_efi.c
@@ -163,7 +163,9 @@ int get_partition_info_efi(block_dev_desc_t * dev_desc, int part,
/* 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);