part_efi: Fix partition size calculation due to inclusive ending LBA.

[platform/kernel/u-boot.git] / disk / part_efi.c

diff --git a/disk/part_efi.c b/disk/part_efi.c
index 979019a..d8a8111 100644 (file)
--- a/disk/part_efi.c
+++ b/disk/part_efi.c
@@ -22,10 +22,10 @@
  */
 
 /*
- * Problems with CFG_64BIT_LBA:
+ * Problems with CONFIG_SYS_64BIT_LBA:
  *
  * struct disk_partition.start in include/part.h is sized as ulong.
- * When CFG_64BIT_LBA is activated, lbaint_t changes from ulong to uint64_t.
+ * When CONFIG_SYS_64BIT_LBA is activated, lbaint_t changes from ulong to uint64_t.
  * For now, it is cast back to ulong at assignment.
  *
  * This limits the maximum size of addressable storage to < 2 Terra Bytes
@@ -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);