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efi_loader: Correctly account the SCRTM event creation

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The result of efi_append_scrtm_version() is overwritten before anyone
checks its result. Check it and exit the function on failures

Addresses-Coverity-ID: 467399 Code maintainability issues (UNUSED_VALUE)
Fixes: commit 97707f12fd ("tpm: Support boot measurements")
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
This commit is contained in:
Ilias Apalodimas 2023-11-07 13:31:34 +02:00 • committed by Heinrich Schuchardt
parent a8062549d6
commit 229f9e77fe
1 changed files with 4 additions and 1 deletions
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5
lib/efi_loader/efi_tcg2.c
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@ -944,8 +944,11 @@ static efi_status_t efi_init_event_log(void)
* Add SCRTM version to the log if previous firmmware * Add SCRTM version to the log if previous firmmware
* doesn't pass an eventlog. * doesn't pass an eventlog.
*/ */
if (!elog.found) if (!elog.found) {
ret = efi_append_scrtm_version(dev); ret = efi_append_scrtm_version(dev);
if (ret != EFI_SUCCESS)
goto free_pool;
}
ret = create_final_event(); ret = create_final_event();
if (ret != EFI_SUCCESS) if (ret != EFI_SUCCESS)