libertas: don't leak skb on receive error

Don't lead memory when receive errors

Signed-off-by: Philip Rakity <prakity@yahoo.com>
Acked-by: Dan Williams <dcbw@redhat.com>
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 63d7e19..8e66977 100644
--- a/drivers/net/wireless/libertas/rx.c
+++ b/drivers/net/wireless/libertas/rx.c
@@ -170,6 +170,7 @@
 		lbs_deb_rx("rx err: frame received with bad length\n");
 		dev->stats.rx_length_errors++;
 		ret = 0;
+		dev_kfree_skb(skb);
 		goto done;
 	}
 
@@ -181,6 +182,7 @@
 		lbs_pr_alert("rxpd not ok\n");
 		dev->stats.rx_errors++;
 		ret = 0;
+		dev_kfree_skb(skb);
 		goto done;
 	}