iwlwifi: mvm: add D0i3 ref/unref for scan
Take a reference when starting to scan and release it on completion.
Note that if the scan is cancelled/aborted, a completion will still be
sent up.
Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index e121685..64d9efd 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -1442,11 +1442,17 @@
mutex_lock(&mvm->mutex);
- if (mvm->scan_status == IWL_MVM_SCAN_NONE)
- ret = iwl_mvm_scan_request(mvm, vif, req);
- else
+ if (mvm->scan_status != IWL_MVM_SCAN_NONE) {
ret = -EBUSY;
+ goto out;
+ }
+ iwl_mvm_ref(mvm, IWL_MVM_REF_SCAN);
+
+ ret = iwl_mvm_scan_request(mvm, vif, req);
+ if (ret)
+ iwl_mvm_unref(mvm, IWL_MVM_REF_SCAN);
+out:
mutex_unlock(&mvm->mutex);
return ret;