* one fix for rfkill while scheduled scan is running.

Linus's system hit this issue. WiFi would be unavailable
   after this has happpened because of bad state in cfg80211.
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Merge tag 'iwlwifi-for-kalle-2015-01-15' of https://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-fixes

* one fix for rfkill while scheduled scan is running.
  Linus's system hit this issue. WiFi would be unavailable
  after this has happpened because of bad state in cfg80211.

drivers/net/wireless/iwlwifi/mvm/scan.c

@@ -1107,6 +1107,12 @@ int iwl_mvm_scan_offload_stop(struct iwl_mvm *mvm, bool notify)
 		return iwl_umac_scan_stop(mvm, IWL_UMAC_SCAN_UID_SCHED_SCAN,
 					  notify);
 
+	if (mvm->scan_status == IWL_MVM_SCAN_NONE)
+		return 0;
+
+	if (iwl_mvm_is_radio_killed(mvm))
+		goto out;
+
 	if (mvm->scan_status != IWL_MVM_SCAN_SCHED &&
 	    (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LMAC_SCAN) ||
 	     mvm->scan_status != IWL_MVM_SCAN_OS)) {
@@ -1143,6 +1149,7 @@ int iwl_mvm_scan_offload_stop(struct iwl_mvm *mvm, bool notify)
 	if (mvm->scan_status == IWL_MVM_SCAN_OS)
 		iwl_mvm_unref(mvm, IWL_MVM_REF_SCAN);
 
+out:
 	mvm->scan_status = IWL_MVM_SCAN_NONE;
 
 	if (notify) {