From 146f8b330ad872df05d21b5fba75ef88194b95c3 Mon Sep 17 00:00:00 2001
From: Liad Kaufman <liad.kaufman@intel.com>
Date: Thu, 23 Mar 2017 11:08:59 +0200
Subject: [PATCH 01/68] iwlwifi: mvm: disable dbg data collect when fw isn't
alive
References: FATE#322675
Git-commit: f45f979dc208c96bb13a229381be2c1e4bf3afb3
Patch-mainline: v4.13-rc1
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>
Signed-off-by: Oliver Neukum <oneukum@suse.com>
---
drivers/net/wireless/intel/iwlwifi/mvm/fw-dbg.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/fw-dbg.c b/drivers/net/wireless/intel/iwlwifi/mvm/fw-dbg.c
index 9b80e06641e9..1602b360353c 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/fw-dbg.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/fw-dbg.c
@@ -913,6 +913,10 @@ 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;
--
2.12.3