1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/net/wireless/orinoco.c b/drivers/net/wireless/orinoco.c
index d6ed5781b93a..1174ff53e025 100644
--- a/drivers/net/wireless/orinoco.c
+++ b/drivers/net/wireless/orinoco.c
@@ -82,6 +82,7 @@
 #include <linux/netdevice.h>
 #include <linux/etherdevice.h>
 #include <linux/ethtool.h>
+#include <linux/if_arp.h>
 #include <linux/wireless.h>
 #include <net/iw_handler.h>
 #include <net/ieee80211.h>
@@ -2875,7 +2876,7 @@ static int orinoco_ioctl_setiwencode(struct net_device *dev,
         if (orinoco_lock(priv, &flags) != 0)
                 return -EBUSY;
 
-        if (erq->pointer) {
+        if (erq->length > 0) {
                 if ((index < 0) || (index >= ORINOCO_MAX_KEYS))
                         index = priv->tx_key;
 
@@ -2918,7 +2919,7 @@ static int orinoco_ioctl_setiwencode(struct net_device *dev,
         if (erq->flags & IW_ENCODE_RESTRICTED)
                 restricted = 1;
 
-        if (erq->pointer) {
+        if (erq->pointer && erq->length > 0) {
                 priv->keys[index].len = cpu_to_le16(xlen);
                 memset(priv->keys[index].data, 0,
                        sizeof(priv->keys[index].data));