libertas: fix error cases in lbs_process_rxed_802_11_packet()

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/libertas/rx.c b/drivers/net/wireless/libertas/rx.c
index 90a2199..141069f 100644 (file)
--- a/drivers/net/wireless/libertas/rx.c
+++ b/drivers/net/wireless/libertas/rx.c
@@ -337,9 +337,10 @@ static int process_rxed_802_11_packet(struct lbs_private *priv,
        // lbs_deb_hex(LBS_DEB_RX, "RX Data: Before chop rxpd", skb->data, min(skb->len, 100));
 
        if (skb->len < (ETH_HLEN + 8 + sizeof(struct rxpd))) {
-               lbs_deb_rx("rx err: frame received wit bad length\n");
+               lbs_deb_rx("rx err: frame received with bad length\n");
                priv->stats.rx_length_errors++;
-               ret = 0;
+               ret = -EINVAL;
+               kfree(skb);
                goto done;
        }
 
@@ -381,10 +382,11 @@ static int process_rxed_802_11_packet(struct lbs_private *priv,
 
        /* add space for the new radio header */
        if ((skb_headroom(skb) < sizeof(struct rx_radiotap_hdr)) &&
-           pskb_expand_head(skb, sizeof(struct rx_radiotap_hdr), 0,
-                            GFP_ATOMIC)) {
-               lbs_pr_alert("%s: couldn't pskb_expand_head\n",
-                            __func__);
+           pskb_expand_head(skb, sizeof(struct rx_radiotap_hdr), 0, GFP_ATOMIC)) {
+               lbs_pr_alert("%s: couldn't pskb_expand_head\n", __func__);
+               ret = -ENOMEM;
+               kfree_skb(skb);
+               goto done;
        }
 
        pradiotap_hdr = (void *)skb_push(skb, sizeof(struct rx_radiotap_hdr));