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iwlagn: avoid crash if vif is not assigned

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For reasons that aren't entirely clear to me,
we sometimes get here during hardware reset
without the interface being set. Don't crash,
but keep a warning.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
This commit is contained in:
Johannes Berg 2010-11-10 18:25:47 -08:00 committed by Wey-Yi Guy
parent cfa1da7e91
commit 893654de3f
1 changed files with 5 additions and 0 deletions
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5
drivers/net/wireless/iwlwifi/iwl-agn-rxon.c
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@ -507,6 +507,11 @@ void iwlagn_bss_info_changed(struct ieee80211_hw *hw,
mutex_lock(&priv->mutex);
if (WARN_ON(!ctx->vif)) {
mutex_unlock(&priv->mutex);
return;
}
if (changes & BSS_CHANGED_BEACON_INT)
force = true;