[PATCH] orinoco: fix setting transmit key only

When determining whether there's a key to set or not, orinoco should be
looking at the key length, not the key data.  Otherwise confusion reigns
when trying to set TX key only, passing in zero-length key, but non-NULL
pointer.  Key length takes precedence over non-NULL key data.

Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/orinoco.c b/drivers/net/wireless/orinoco.c
index d6ed578..317ace7 100644 (file)
--- a/drivers/net/wireless/orinoco.c
+++ b/drivers/net/wireless/orinoco.c
@@ -2875,7 +2875,7 @@ 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 +2918,7 @@ 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));