[PATCH] efi_loader: Correctly account the SCRTM event creation

[Ilias Apalodimas]

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 97707f12fdab ("tpm: Support boot measurements")
Signed-off-by: Ilias Apalodimas <ilias.apalodimas at linaro.org>
---
 lib/efi_loader/efi_tcg2.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/lib/efi_loader/efi_tcg2.c b/lib/efi_loader/efi_tcg2.c
index 2eaa12b83b16..463ea4c15416 100644
--- a/lib/efi_loader/efi_tcg2.c
+++ b/lib/efi_loader/efi_tcg2.c
@@ -944,8 +944,11 @@ static efi_status_t efi_init_event_log(void)
 	 * Add SCRTM version to the log if previous firmmware
 	 * doesn't pass an eventlog.
 	 */
-	if (!elog.found)
+	if (!elog.found) {
 		ret = efi_append_scrtm_version(dev);
+		if (ret != EFI_SUCCESS)
+			goto free_pool;
+	}
 
 	ret = create_final_event();
 	if (ret != EFI_SUCCESS)
-- 
2.40.1