[RFC PATCH 05/09] robust VM per_cpu module
Steven Rostedt <[email protected]>
| Newsgroups | gmane.linux.ports.ia64,gmane.linux.kernel,gmane.linux.ports.hppa,gmane.linux.ports.ppc64.devel |
|---|---|
| Message-ID | <[email protected]> |
This patch performs a check on the return value of percpu_modcopy for the module load. Signed-off-by: Steven Rostedt <[email protected]> Index: linux-2.6.16-test/kernel/module.c =================================================================== --- linux-2.6.16-test.orig/kernel/module.c 2006-05-17 04:32:28.000000000 -0400 +++ linux-2.6.16-test/kernel/module.c 2006-05-17 04:57:53.000000000 -0400 @@ -1819,8 +1819,11 @@ static struct module *load_module(void _ sort_extable(extable, extable + mod->num_exentries); /* Finally, copy percpu area over. */ - percpu_modcopy(mod->percpu, (void *)sechdrs[pcpuindex].sh_addr, - sechdrs[pcpuindex].sh_size); + err = percpu_modcopy(mod->percpu, (void *)sechdrs[pcpuindex].sh_addr, + sechdrs[pcpuindex].sh_size); + + if (err < 0) + goto cleanup; add_kallsyms(mod, sechdrs, symindex, strindex, secstrings); - To unsubscribe from this list: send the line "unsubscribe linux-ia64" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html