functions: return succesfully if add_module_from_symbol has no modules to add
Instead, fail if no modules with the matching criteria are found.
Fixes: f90ed9b0 ("Add optional -c flag to add_module_from_symbol to use add_checked_modules")
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Instead, fail if no modules with the matching criteria are found.
Fixes: f90ed9b0 ("Add optional -c flag to add_module_from_symbol to use add_checked_modules")