tpm: Pass unknown error as non-fatal, but debug print the error we got

Signed-off-by: Mathieu Trudel-Lapierre <mathieu.trudel-lapierre@canonical.com>
Bug-Debian: https://bugs.debian.org/940911
Bug-Ubuntu: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1848892
Last-Update: 2021-09-24

Patch-Name: tpm-unknown-error-non-fatal.patch

diff --git a/grub-core/commands/efi/tpm.c b/grub-core/commands/efi/tpm.c
index a97d85368ace71808ec76e62a6a36f5e1f277357..e73bd5561fad2ddacd0cee743f0baa1d8bb44a5e 100644 (file)
--- a/grub-core/commands/efi/tpm.c
+++ b/grub-core/commands/efi/tpm.c
@@ -145,7 +145,8 @@ grub_efi_log_event_status (grub_efi_status_t status)
     case GRUB_EFI_NOT_FOUND:
       return grub_error (GRUB_ERR_UNKNOWN_DEVICE, N_("TPM unavailable"));
     default:
-      return grub_error (GRUB_ERR_UNKNOWN_DEVICE, N_("Unknown TPM error"));
+      grub_dprintf ("tpm", "Unknown TPM error: %" PRIdGRUB_SSIZE, status);
+      return 0;
     }
 }