mirror_mok_db(): Free our mok variable name correctly

When we've split a mok variable into name0..nameN, we re-use the same
buffer over and over, but we never free it at the end.

This frees it.

Resolves: Coverity CID 457501
Signed-off-by: Peter Jones <[email protected]>

Author: vathpela

mok.c

@@ -604,7 +604,7 @@ mirror_mok_db(CHAR16 *name, EFI_GUID *guid, UINT32 attrs,
 		return efi_status;
 	}
 
-	CHAR16 *namen;
+	CHAR16 *namen = NULL;
 	UINTN namelen, namesz;
 
 	namelen = StrLen(name);
@@ -726,6 +726,9 @@ mirror_mok_db(CHAR16 *name, EFI_GUID *guid, UINT32 attrs,
 			break;
 		i++;
 	}
+	if (namen && namen != name) {
+		FreePool(namen);
+	}
 
 	if (EFI_ERROR(efi_status)) {
 		perror(L"Failed to set %s: %r\n", name, efi_status);