iwlwifi: mvm: comply with fw_restart mod param on suspend

If the suspend flow fails, we restart the hardware to go back to
the D0 image (with non-unified images), but we don't comply with
the fw_restart module parameter.  If something goes wrong when
starting the D3 image, we may want to debug it, so we should
comply with the fw_restart flag to avoid clearing everything up
and losing the firmware state when the error occurred.

Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/d3.c b/drivers/net/wireless/intel/iwlwifi/mvm/d3.c
index 0e17cb2..03a8fc5 100644 (file)
--- a/drivers/net/wireless/intel/iwlwifi/mvm/d3.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/d3.c
@@ -1254,7 +1254,10 @@ static int __iwl_mvm_suspend(struct ieee80211_hw *hw,
  out:
        if (ret < 0) {
                iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
-               ieee80211_restart_hw(mvm->hw);
+               if (mvm->restart_fw > 0) {
+                       mvm->restart_fw--;
+                       ieee80211_restart_hw(mvm->hw);
+               }
                iwl_mvm_free_nd(mvm);
        }
  out_noreset: