quoted

+                                 utf16_strlen(efi_name))) {
+                       /*
+                        * Check if an old format,
+                        * which doesn't support holding
+                        * multiple logs, remains.
+                        */
+                       if (sscanf(name, "dump-type%u-%u-%lu",
+                                  &type_old, &part_old, &time_old) !=
+ 3)

This doesn't look right.  This should probably mirror the sprintf() at the top of the function using a new string, convert it to 16-bit
Unicodeand then compare it like we do for the 4-variable version above (please ignore the fact that this driver incorrectly calls these
strings utf16 everywhere -- that needs to be fixed).

I will fix it as well.

Seiji