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author | Linus Torvalds <torvalds@linux-foundation.org> | 2017-02-23 02:08:33 +0100 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-02-23 02:08:33 +0100 |
commit | 6ef192f2259e78e1870c509fbd3040e6752b3b9c (patch) | |
tree | 61530c9059819327e82e72c70a8b1ee4c3559b47 /kernel/module.c | |
parent | Merge tag 'tty-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gre... (diff) | |
parent | MAINTAINERS: add tree for modules (diff) | |
download | linux-6ef192f2259e78e1870c509fbd3040e6752b3b9c.tar.xz linux-6ef192f2259e78e1870c509fbd3040e6752b3b9c.zip |
Merge tag 'modules-for-v4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux
Pull modules updates from Jessica Yu:
"Summary of modules changes for the 4.11 merge window:
- A few small code cleanups
- Add modules git tree url to MAINTAINERS"
* tag 'modules-for-v4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux:
MAINTAINERS: add tree for modules
module: fix memory leak on early load_module() failures
module: Optimize search_module_extables()
modules: mark __inittest/__exittest as __maybe_unused
livepatch/module: print notice of TAINT_LIVEPATCH
module: Drop redundant declaration of struct module
Diffstat (limited to 'kernel/module.c')
-rw-r--r-- | kernel/module.c | 30 |
1 files changed, 17 insertions, 13 deletions
diff --git a/kernel/module.c b/kernel/module.c index a3889169a3ae..7eba6dea4f41 100644 --- a/kernel/module.c +++ b/kernel/module.c @@ -2811,6 +2811,8 @@ static int check_modinfo_livepatch(struct module *mod, struct load_info *info) if (get_modinfo(info, "livepatch")) { mod->klp = true; add_taint_module(mod, TAINT_LIVEPATCH, LOCKDEP_STILL_OK); + pr_notice_once("%s: tainting kernel with TAINT_LIVEPATCH\n", + mod->name); } return 0; @@ -3723,6 +3725,7 @@ static int load_module(struct load_info *info, const char __user *uargs, mod_sysfs_teardown(mod); coming_cleanup: mod->state = MODULE_STATE_GOING; + destroy_params(mod->kp, mod->num_kp); blocking_notifier_call_chain(&module_notify_list, MODULE_STATE_GOING, mod); klp_module_going(mod); @@ -4169,22 +4172,23 @@ const struct exception_table_entry *search_module_extables(unsigned long addr) struct module *mod; preempt_disable(); - list_for_each_entry_rcu(mod, &modules, list) { - if (mod->state == MODULE_STATE_UNFORMED) - continue; - if (mod->num_exentries == 0) - continue; + mod = __module_address(addr); + if (!mod) + goto out; - e = search_extable(mod->extable, - mod->extable + mod->num_exentries - 1, - addr); - if (e) - break; - } + if (!mod->num_exentries) + goto out; + + e = search_extable(mod->extable, + mod->extable + mod->num_exentries - 1, + addr); +out: preempt_enable(); - /* Now, if we found one, we are running inside it now, hence - we cannot unload the module, hence no refcnt needed. */ + /* + * Now, if we found one, we are running inside it now, hence + * we cannot unload the module, hence no refcnt needed. + */ return e; } |