From: Johannes Berg <johannes.berg@xxxxxxxxx> When the beacon_skb is NULL, we might still attempt to use it in this code path (if we ever get here) -- make the code a bit more defensive and check the return value of iwl_fill_beacon_frame() against zero. Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@xxxxxxxxx> --- drivers/net/wireless/iwlwifi/iwl-agn.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c index 7079efb..c2636a7 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn.c @@ -385,6 +385,8 @@ static unsigned int iwl_hw_get_beacon_cmd(struct iwl_priv *priv, sizeof(frame->u) - sizeof(*tx_beacon_cmd)); if (WARN_ON_ONCE(frame_size > MAX_MPDU_SIZE)) return 0; + if (!frame_size) + return 0; /* Set up TX command fields */ tx_beacon_cmd->tx.len = cpu_to_le16((u16)frame_size); -- 1.7.0.4 -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
