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part: efi: fix error pointer for buffer pte 

Set to NULL after the pointer is free.

Change-Id: I7fd703984514295bc9e5eea34808e0ac941bdb30
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
This commit is contained in:
Kever Yang 2018-06-01 15:47:02 +08:00
parent 52ae0af19e
commit 49f41c7b1e
1 changed files with 2 additions and 1 deletions
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3
disk/part_efi.c
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@ -276,7 +276,7 @@ int part_get_info_efi(struct blk_desc *dev_desc, int part,
gpt_head = memalign(ARCH_DMA_MINALIGN, dev_desc->blksz);
/* We suppose different dev have different size, eg. emmc vs sd */
if (!gpt_head && (gpt_head->last_usable_lba + 0x22) != dev_desc->lba)
if (gpt_head && (gpt_head->last_usable_lba + 0x22) != dev_desc->lba)
gpt_pte = NULL;
/* "part" argument must be at least 1 */
@ -985,6 +985,7 @@ static int is_gpt_valid(struct blk_desc *dev_desc, u64 lba,
if (validate_gpt_entries(pgpt_head, *pgpt_pte)) {
free(*pgpt_pte);
*pgpt_pte = NULL;
return 0;
}