[PATCH 5/5] Revert "tpm: do not ignore memblock_reserve return value"

From: Sang-Heon Jeon

Date: Tue Jun 16 2026 - 14:31:58 EST


This reverts commit c33c28f9f6e017702374e1ab907dfa5a63db5301.

efi_tpm_eventlog_init() runs from efi_config_parse_tables() during early
EFI initialization, before memblock_allow_resize(). At that point
memblock_reserve() either succeeds or panics, never returning an error.

Therefore the return value check is unreachable, so restore the original
unconditional memblock_reserve().

No functional change.

Signed-off-by: Sang-Heon Jeon <ekffu200098@xxxxxxxxx>
---
drivers/firmware/efi/tpm.c | 7 +------
1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/drivers/firmware/efi/tpm.c b/drivers/firmware/efi/tpm.c
index cdd431027065..288bcf7a5b99 100644
--- a/drivers/firmware/efi/tpm.c
+++ b/drivers/firmware/efi/tpm.c
@@ -61,12 +61,7 @@ int __init efi_tpm_eventlog_init(void)
}

tbl_size = sizeof(*log_tbl) + log_tbl->size;
- if (memblock_reserve(efi.tpm_log, tbl_size)) {
- pr_err("TPM Event Log memblock reserve fails (0x%lx, 0x%x)\n",
- efi.tpm_log, tbl_size);
- ret = -ENOMEM;
- goto out;
- }
+ memblock_reserve(efi.tpm_log, tbl_size);

if (efi.tpm_final_log == EFI_INVALID_TABLE_ADDR) {
pr_info("TPM Final Events table not present\n");
--
2.43.0