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[PATCH] kernel/params: driver layer error checking

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Check driver layer return values in kernel/params.c

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Randy Dunlap 2006-09-29 01:58:55 -07:00 • committed by Linus Torvalds
parent 5906e4171a
commit d8c7649e99
1 changed files with 11 additions and 2 deletions
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13
kernel/params.c
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@ -547,6 +547,7 @@ static void __init kernel_param_sysfs_setup(const char *name,
unsigned int name_skip) unsigned int name_skip)
{ {
struct module_kobject *mk; struct module_kobject *mk;
int ret;
mk = kzalloc(sizeof(struct module_kobject), GFP_KERNEL); mk = kzalloc(sizeof(struct module_kobject), GFP_KERNEL);
BUG_ON(!mk); BUG_ON(!mk);
@ -554,7 +555,8 @@ static void __init kernel_param_sysfs_setup(const char *name,
mk->mod = THIS_MODULE; mk->mod = THIS_MODULE;
kobj_set_kset_s(mk, module_subsys); kobj_set_kset_s(mk, module_subsys);
kobject_set_name(&mk->kobj, name); kobject_set_name(&mk->kobj, name);
kobject_register(&mk->kobj); ret = kobject_register(&mk->kobj);
BUG_ON(ret < 0);
/* no need to keep the kobject if no parameter is exported */ /* no need to keep the kobject if no parameter is exported */
if (!param_sysfs_setup(mk, kparam, num_params, name_skip)) { if (!param_sysfs_setup(mk, kparam, num_params, name_skip)) {
@ -684,7 +686,14 @@ decl_subsys(module, &module_ktype, NULL);
*/ */
static int __init param_sysfs_init(void) static int __init param_sysfs_init(void)
{ {
subsystem_register(&module_subsys); int ret;
ret = subsystem_register(&module_subsys);
if (ret < 0) {
printk(KERN_WARNING "%s (%d): subsystem_register error: %d\n",
__FILE__, __LINE__, ret);
return ret;
}
param_sysfs_builtin(); param_sysfs_builtin();