#include <linux/kernel.h>
#include <linux/netdevice.h>
#include <linux/if_arp.h>
+#include <linux/slab.h>
#include <net/sock.h>
#include <linux/rtnetlink.h>
#include <linux/wireless.h>
const struct iw_statistics *iw;
ssize_t ret = -EINVAL;
- rtnl_lock();
+ if (!rtnl_trylock())
+ return restart_syscall();
if (dev_isalive(dev)) {
iw = get_wireless_stats(dev);
if (iw)