From b11f54ba8923fc989198e9300fa308a90f58ebbf Mon Sep 17 00:00:00 2001 From: Ilan Peer Date: Thu, 10 May 2012 15:53:14 +0300 Subject: [PATCH] iwlwifi: Check BSS ctx active before call mac80211 It is possible that the BSS context is not active (for example when the current mode is set to GO), or that the vif->type is different than station. In such a case we cannot call mac80211 to report the average rssi for the interface (the function assumes that the vif is valid and that the type is station). Reviewed-by: Emmanuel Grumbach Signed-off-by: Ilan Peer Signed-off-by: Johannes Berg --- drivers/net/wireless/iwlwifi/iwl-agn-lib.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-lib.c b/drivers/net/wireless/iwlwifi/iwl-agn-lib.c index e55ec6c8a9207..c31072d42791b 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-lib.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-lib.c @@ -617,6 +617,11 @@ static bool iwlagn_fill_txpower_mode(struct iwl_priv *priv, struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; int ave_rssi; + if (!ctx->vif || (ctx->vif->type != NL80211_IFTYPE_STATION)) { + IWL_DEBUG_INFO(priv, "BSS ctx not active or not in sta mode\n"); + return false; + } + ave_rssi = ieee80211_ave_rssi(ctx->vif); if (!ave_rssi) { /* no rssi data, no changes to reduce tx power */ -- 2.39.5