Thanks for you reply, please see inline. Heiko Carstens <heiko.carstens <at> de.ibm.com> writes: > [snip] > > static inline int try_module_get(struct module *module){ > > int ret = 1; <--- error case when !module > > if (module) { > > unsigned int cpu = get_cpu(); > > if (likely(module_is_live(module))) > > local_inc(&module->ref[cpu].count); > > else > > ret = 0; <--- error case > > put_cpu(); > > } > > return ret; <---- > > } > > ---- [snip] > Somewhere in module.h you have: > > #ifdef MODULE > #define THIS_MODULE (&__this_module) > #else /* !MODULE */ > #define THIS_MODULE ((struct module *)0) > #endif > > So this just means, that THIS_MODULE is NULL for compiled in modules > and therefore try_module_get(NULL) succeeds. It's not an error case.
Agreed. Then what is return value if my module tries to 'get' a module which does not exist (and is a module, not in-built)? . Is it '1' ? Or am I imagining a hypothetical scenario which would not exist? Thanks again for your fast response. Shreyansh - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/