avoid erroring when a builtin-module can't be found

This is harmless fallout from 5249350, which tries harder to re-add
aliases of builtins.

1 files changed, 1 insertions, 1 deletions

diff --git a/functions b/functions
index 4afc902..e35a03b 100644
--- a/functions
+++ b/functions
@@ -390,7 +390,7 @@ add_module() {
     done < <(modinfo -b "$_optmoduleroot" -k "$KERNELVERSION" -0 "$target" 2>/dev/null)
 
     if (( !found )); then
-        (( ign_errors )) && return 0
+        (( ign_errors || _addedmodules["$target"] )) && return 0
         error "module not found: \`%s'" "$target"
         return 1
     fi