Merge branches 'release', 'asus', 'sony-laptop' and 'thinkpad' into release

[pandora-kernel.git] / drivers / net / wireless / b43legacy / xmit.c

diff --git a/drivers/net/wireless/b43legacy/xmit.c b/drivers/net/wireless/b43legacy/xmit.c
index e20c552..d84408a 100644 (file)
--- a/drivers/net/wireless/b43legacy/xmit.c
+++ b/drivers/net/wireless/b43legacy/xmit.c
@@ -181,7 +181,7 @@ static u8 b43legacy_calc_fallback_rate(u8 bitrate)
        return 0;
 }
 
-static void generate_txhdr_fw3(struct b43legacy_wldev *dev,
+static int generate_txhdr_fw3(struct b43legacy_wldev *dev,
                               struct b43legacy_txhdr_fw3 *txhdr,
                               const unsigned char *fragment_data,
                               unsigned int fragment_len,
@@ -252,6 +252,13 @@ static void generate_txhdr_fw3(struct b43legacy_wldev *dev,
                        iv_len = min((size_t)txctl->iv_len,
                                     ARRAY_SIZE(txhdr->iv));
                        memcpy(txhdr->iv, ((u8 *)wlhdr) + wlhdr_len, iv_len);
+               } else {
+                       /* This key is invalid. This might only happen
+                        * in a short timeframe after machine resume before
+                        * we were able to reconfigure keys.
+                        * Drop this packet completely. Do not transmit it
+                        * unencrypted to avoid leaking information. */
+                       return -ENOKEY;
                }
        }
        b43legacy_generate_plcp_hdr((struct b43legacy_plcp_hdr4 *)
@@ -345,16 +352,18 @@ static void generate_txhdr_fw3(struct b43legacy_wldev *dev,
        /* Apply the bitfields */
        txhdr->mac_ctl = cpu_to_le32(mac_ctl);
        txhdr->phy_ctl = cpu_to_le16(phy_ctl);
+
+       return 0;
 }
 
-void b43legacy_generate_txhdr(struct b43legacy_wldev *dev,
+int b43legacy_generate_txhdr(struct b43legacy_wldev *dev,
                              u8 *txhdr,
                              const unsigned char *fragment_data,
                              unsigned int fragment_len,
                              const struct ieee80211_tx_control *txctl,
                              u16 cookie)
 {
-       generate_txhdr_fw3(dev, (struct b43legacy_txhdr_fw3 *)txhdr,
+       return generate_txhdr_fw3(dev, (struct b43legacy_txhdr_fw3 *)txhdr,
                           fragment_data, fragment_len,
                           txctl, cookie);
 }