* Init -- EINVAL when opt undefined
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <asm/uaccess.h>
#include <asm/system.h>
for (prio = q->bands-1; prio >= 0; prio--) {
qdisc = q->queues[prio];
- if ((len = qdisc->ops->drop(qdisc)) != 0) {
+ if (qdisc->ops->drop && (len = qdisc->ops->drop(qdisc)) != 0) {
sch->q.qlen--;
return len;
}