lib/kobject.c : Check parameter in kobject_set_name

kobject_set_name is exported and is just a wrapper for kobject_set_name_vargs which does not check its parameter kobj.
So check this parameter in kobject_set_name.

---
 lib/kobject.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

index 56c8cb3..dd67855 100644
@@ -248,6 +248,9 @@ int kobject_set_name(struct kobject *kobj, const char *fmt, ...)
 	va_list vargs;
 	int retval;
 
+	if (!kobj)
+		return -EINVAL;
+
 	va_start(vargs, fmt);
 	retval = kobject_set_name_vargs(kobj, fmt, vargs);
 	va_end(vargs);

1.7.5.1

I have the same objection to this patch, why is it needed? All in-kernel users do this properly, so the patch isn't needed.

Remember, kernel programming isn't always about being defensive.

greg k-h