iwlwifi: mvm: disable dbg data collect when fw isn't alive
If FW isn't alive, trying to collect debug data will
result in errors both in driver and in the collected
data, so just warn and leave the collecting function
in this case.
Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/fw-dbg.c b/drivers/net/wireless/intel/iwlwifi/mvm/fw-dbg.c
index c66baf1..d5cb47e 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/fw-dbg.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/fw-dbg.c
@@ -915,6 +915,10 @@ int iwl_mvm_fw_dbg_collect_desc(struct iwl_mvm *mvm,
if (trigger)
delay = msecs_to_jiffies(le32_to_cpu(trigger->stop_delay));
+ if (WARN(mvm->trans->state == IWL_TRANS_NO_FW,
+ "Can't collect dbg data when FW isn't alive\n"))
+ return -EIO;
+
if (test_and_set_bit(IWL_MVM_STATUS_DUMPING_FW_LOG, &mvm->status))
return -EBUSY;