iwlwifi: mvm: don't allow sched scans without matches to be started

[firefly-linux-kernel-4.4.55.git] / drivers / net / wireless / iwlwifi / mvm / scan.c

diff --git a/drivers/net/wireless/iwlwifi/mvm/scan.c b/drivers/net/wireless/iwlwifi/mvm/scan.c
index d6e0c1b5c20cf31e3b8860f9afb8361a0d44c443..8215d7405f64edd2a320493db4603e37c962895b 100644 (file)
--- a/drivers/net/wireless/iwlwifi/mvm/scan.c
+++ b/drivers/net/wireless/iwlwifi/mvm/scan.c
@@ -1267,6 +1267,10 @@ int iwl_mvm_sched_scan_start(struct iwl_mvm *mvm,
                return -EBUSY;
        }
 
+       /* we don't support "match all" in the firmware */
+       if (!req->n_match_sets)
+               return -EOPNOTSUPP;
+
        ret = iwl_mvm_check_running_scans(mvm, type);
        if (ret)
                return ret;