Re: [broken-out-2007-07-20-00-22] kernel bug at kernel/params:570

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On Fri, Jul 20, 2007 at 06:37:33PM -0700, Andrew Morton wrote:
> On Fri, 20 Jul 2007 18:02:57 -0700 Greg KH <[email protected]> wrote:
> 
> > --- a/kernel/params.c
> > +++ b/kernel/params.c
> > @@ -567,7 +567,11 @@ static void __init kernel_param_sysfs_se
> >  	kobject_set_name(&mk->kobj, name);
> >  	kobject_init(&mk->kobj);
> >  	ret = kobject_add(&mk->kobj);
> > -	BUG_ON(ret < 0);
> > +	if (ret) {
> > +		printk(KERN_ERR "module '%s' failed to be added to sysfs, "
> > +			"the system will be unstable now.\n", name);
> > +		return;
> > +	}
> 
> It would be nice to print the value of `ret' too.

Ok, how about this version:

---
 kernel/params.c |    7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

--- a/kernel/params.c
+++ b/kernel/params.c
@@ -567,7 +567,12 @@ static void __init kernel_param_sysfs_se
 	kobject_set_name(&mk->kobj, name);
 	kobject_init(&mk->kobj);
 	ret = kobject_add(&mk->kobj);
-	BUG_ON(ret < 0);
+	if (ret) {
+		printk(KERN_ERR "Module '%s' failed to be added to sysfs, "
+		      "error number %d\n", name, ret);
+		printk(KERN_ERR	"The system will be unstable now.\n");
+		return;
+	}
 	param_sysfs_setup(mk, kparam, num_params, name_skip);
 	kobject_uevent(&mk->kobj, KOBJ_ADD);
 }
-
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