diff options
| author | Corentin Labbe <clabbe.montjoie@gmail.com> | 2017-06-06 14:17:39 +0200 |
|---|---|---|
| committer | Jessica Yu <jeyu@kernel.org> | 2017-06-26 17:23:19 +0200 |
| commit | 1ba5c08b58a0c21fca222f1bf2fde184aa26103f (patch) | |
| tree | 958a979940db979133f522dde5c722575109d957 /kernel/module.c | |
| parent | 3e2e857f9c3a19d55ee0ba7b428b8be5008960bf (diff) | |
kernel/module.c: suppress warning about unused nowarn variable
This patch fix the following warning:
kernel/module.c: In function 'add_usage_links':
kernel/module.c:1653:6: warning: variable 'nowarn' set but not used [-Wunused-but-set-variable]
[jeyu: folded in first patch since it only swapped the function order
so that del_usage_links can be called from add_usage_links]
Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: Jessica Yu <jeyu@kernel.org>
Diffstat (limited to 'kernel/module.c')
| -rw-r--r-- | kernel/module.c | 30 |
1 files changed, 20 insertions, 10 deletions
diff --git a/kernel/module.c b/kernel/module.c index 3803449ca219..f546d574f436 100644 --- a/kernel/module.c +++ b/kernel/module.c @@ -1666,31 +1666,36 @@ static inline void remove_notes_attrs(struct module *mod) } #endif /* CONFIG_KALLSYMS */ -static void add_usage_links(struct module *mod) +static void del_usage_links(struct module *mod) { #ifdef CONFIG_MODULE_UNLOAD struct module_use *use; - int nowarn; mutex_lock(&module_mutex); - list_for_each_entry(use, &mod->target_list, target_list) { - nowarn = sysfs_create_link(use->target->holders_dir, - &mod->mkobj.kobj, mod->name); - } + list_for_each_entry(use, &mod->target_list, target_list) + sysfs_remove_link(use->target->holders_dir, mod->name); mutex_unlock(&module_mutex); #endif } -static void del_usage_links(struct module *mod) +static int add_usage_links(struct module *mod) { + int ret = 0; #ifdef CONFIG_MODULE_UNLOAD struct module_use *use; mutex_lock(&module_mutex); - list_for_each_entry(use, &mod->target_list, target_list) - sysfs_remove_link(use->target->holders_dir, mod->name); + list_for_each_entry(use, &mod->target_list, target_list) { + ret = sysfs_create_link(use->target->holders_dir, + &mod->mkobj.kobj, mod->name); + if (ret) + break; + } mutex_unlock(&module_mutex); + if (ret) + del_usage_links(mod); #endif + return ret; } static int module_add_modinfo_attrs(struct module *mod) @@ -1801,13 +1806,18 @@ static int mod_sysfs_setup(struct module *mod, if (err) goto out_unreg_param; - add_usage_links(mod); + err = add_usage_links(mod); + if (err) + goto out_unreg_modinfo_attrs; + add_sect_attrs(mod, info); add_notes_attrs(mod, info); kobject_uevent(&mod->mkobj.kobj, KOBJ_ADD); return 0; +out_unreg_modinfo_attrs: + module_remove_modinfo_attrs(mod); out_unreg_param: module_param_sysfs_remove(mod); out_unreg_holders: |