[PATCH v12 16/20] cryptodisk: Fallback to passphrase

[Gary Lin]

From: Patrick Colp <patrick.colp@oracle.com>

If a protector is specified, but it fails to unlock the disk, fall back
to asking for the passphrase. However, an error was set indicating that
the protector(s) failed. Later code (e.g., LUKS code) fails as
`grub_errno` is now set. Print the existing errors out first, before
proceeding with the passphrase.

Cc: Stefan Berger <stefanb@linux.ibm.com>
Signed-off-by: Patrick Colp <patrick.colp@oracle.com>
Signed-off-by: Gary Lin <glin@suse.com>
---
 grub-core/disk/cryptodisk.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/grub-core/disk/cryptodisk.c b/grub-core/disk/cryptodisk.c
index b7648ffb7..8f00f22a8 100644
--- a/grub-core/disk/cryptodisk.c
+++ b/grub-core/disk/cryptodisk.c
@@ -1191,11 +1191,16 @@ grub_cryptodisk_scan_device_real (const char *name,
                  source->name, source->partition != NULL ? "," : "",
                  part != NULL ? part : N_("UNKNOWN"), dev->uuid);
       grub_free (part);
-      goto error;
     }
 
   if (!cargs->key_len)
     {
+      if (grub_errno)
+       {
+         grub_print_error ();
+         grub_errno = GRUB_ERR_NONE;
+       }
+
       /* Get the passphrase from the user, if no key data. */
       askpass = 1;
       part = grub_partition_get_name (source->partition);
-- 
2.35.3