Modules: only add drivers/ direcory if needed

[pandora-kernel.git] / kernel / params.c

diff --git a/kernel/params.c b/kernel/params.c
index af43ecd..cbaac85 100644 (file)
--- a/kernel/params.c
+++ b/kernel/params.c
@@ -15,7 +15,6 @@
     along with this program; if not, write to the Free Software
     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
-#include <linux/config.h>
 #include <linux/moduleparam.h>
 #include <linux/kernel.h>
 #include <linux/string.h>
@@ -144,9 +143,15 @@ int parse_args(const char *name,
 
        while (*args) {
                int ret;
+               int irq_was_disabled;
 
                args = next_arg(args, &param, &val);
+               irq_was_disabled = irqs_disabled();
                ret = parse_one(param, val, params, num, unknown);
+               if (irq_was_disabled && !irqs_disabled()) {
+                       printk(KERN_WARNING "parse_args(): option '%s' enabled "
+                                       "irq's!\n", param);
+               }
                switch (ret) {
                case -ENOENT:
                        printk(KERN_ERR "%s: Unknown parameter `%s'\n",
@@ -548,6 +553,7 @@ static void __init kernel_param_sysfs_setup(const char *name,
                                            unsigned int name_skip)
 {
        struct module_kobject *mk;
+       int ret;
 
        mk = kzalloc(sizeof(struct module_kobject), GFP_KERNEL);
        BUG_ON(!mk);
@@ -555,13 +561,11 @@ static void __init kernel_param_sysfs_setup(const char *name,
        mk->mod = THIS_MODULE;
        kobj_set_kset_s(mk, module_subsys);
        kobject_set_name(&mk->kobj, name);
-       kobject_register(&mk->kobj);
-
-       /* no need to keep the kobject if no parameter is exported */
-       if (!param_sysfs_setup(mk, kparam, num_params, name_skip)) {
-               kobject_unregister(&mk->kobj);
-               kfree(mk);
-       }
+       kobject_init(&mk->kobj);
+       ret = kobject_add(&mk->kobj);
+       BUG_ON(ret < 0);
+       param_sysfs_setup(mk, kparam, num_params, name_skip);
+       kobject_uevent(&mk->kobj, KOBJ_ADD);
 }
 
 /*
@@ -685,13 +689,20 @@ decl_subsys(module, &module_ktype, NULL);
  */
 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();
 
        return 0;
 }
-__initcall(param_sysfs_init);
+subsys_initcall(param_sysfs_init);
 
 EXPORT_SYMBOL(param_set_byte);
 EXPORT_SYMBOL(param_get_byte);