Patch "iwlwifi: mvm: flush fw_dump_wk when mvm fails to start" has been added to the 4.2-stable tree

Patch "iwlwifi: mvm: flush fw_dump_wk when mvm fails to start" has been added to the 4.2-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    iwlwifi: mvm: flush fw_dump_wk when mvm fails to start

to the 4.2-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     iwlwifi-mvm-flush-fw_dump_wk-when-mvm-fails-to-start.patch
and it can be found in the queue-4.2 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From dbf73d4a8bb8f4e1d1f3edd3be825692279e2ef3 Mon Sep 17 00:00:00 2001
From: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Date: Wed, 30 Sep 2015 12:26:23 +0200
Subject: iwlwifi: mvm: flush fw_dump_wk when mvm fails to start

From: Andrei Otcheretianski <andrei.otcheretianski@intel.com>

commit dbf73d4a8bb8f4e1d1f3edd3be825692279e2ef3 upstream.

FW dump may be triggered when running init ucode, for example due to a
sysassert. In this case fw_dump_wk may run after mvm is freed, resulting
in a kernel panic.
Fix it by flushing the work.

Fixes: 01b988a708af ("iwlwifi: mvm: allow to collect debug data when restart is disabled")
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/net/wireless/iwlwifi/mvm/ops.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/net/wireless/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/iwlwifi/mvm/ops.c
@@ -582,6 +582,7 @@ iwl_op_mode_mvm_start(struct iwl_trans *
 	ieee80211_unregister_hw(mvm->hw);
 	iwl_mvm_leds_exit(mvm);
  out_free:
+	flush_delayed_work(&mvm->fw_dump_wk);
 	iwl_phy_db_free(mvm->phy_db);
 	kfree(mvm->scan_cmd);
 	if (!cfg->no_power_up_nic_in_init || !mvm->nvm_file_name)


Patches currently in stable-queue which might be from andrei.otcheretianski@intel.com are

queue-4.2/iwlwifi-mvm-flush-fw_dump_wk-when-mvm-fails-to-start.patch